Home / 39,337.29-54,283.50-21,431.25

Finding the Fourth Proportional to 39,337.29, 54,283.50 and 21,431.25

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Solution

The fourth proportional to 39,337.29, 54,283.50 and 21,431.25 is: 29,574.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,337.29 : 54,283.50 = 21,431.25 : x
  2. Step 2: Convert to fraction form
    39,337.29/54,283.50 = 21,431.25/x
  3. Step 3: Cross multiply
    39,337.29x = 54,283.50 × 21,431.25
  4. Step 4: Simplify right side
    39,337.29x = 1,163,363,259.38
  5. Step 5: Solve for x
    x = 1,163,363,259.38/39,337.29
  6. Step 6: Final answer
    x = 29,574.06

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Half scale
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Double scale
Find fourth proportional to 39,338.29, 54,284.88 and 21,432.25
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.