Home / 39,341.70-54,291.06-21,436.25

Finding the Fourth Proportional to 39,341.70, 54,291.06 and 21,436.25

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Solution

The fourth proportional to 39,341.70, 54,291.06 and 21,436.25 is: 29,581.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,341.70 : 54,291.06 = 21,436.25 : x
  2. Step 2: Convert to fraction form
    39,341.70/54,291.06 = 21,436.25/x
  3. Step 3: Cross multiply
    39,341.70x = 54,291.06 × 21,436.25
  4. Step 4: Simplify right side
    39,341.70x = 1,163,796,463.47
  5. Step 5: Solve for x
    x = 1,163,796,463.47/39,341.70
  6. Step 6: Final answer
    x = 29,581.75

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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.