Home / 39,193.47-54,087.08-21,288.11

Finding the Fourth Proportional to 39,193.47, 54,087.08 and 21,288.11

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Solution

The fourth proportional to 39,193.47, 54,087.08 and 21,288.11 is: 29,377.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,193.47 : 54,087.08 = 21,288.11 : x
  2. Step 2: Convert to fraction form
    39,193.47/54,087.08 = 21,288.11/x
  3. Step 3: Cross multiply
    39,193.47x = 54,087.08 × 21,288.11
  4. Step 4: Simplify right side
    39,193.47x = 1,151,411,331.74
  5. Step 5: Solve for x
    x = 1,151,411,331.74/39,193.47
  6. Step 6: Final answer
    x = 29,377.63

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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.