Home / 39,304.07-54,237.91-21,399.14

Finding the Fourth Proportional to 39,304.07, 54,237.91 and 21,399.14

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Solution

The fourth proportional to 39,304.07, 54,237.91 and 21,399.14 is: 29,529.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,304.07 : 54,237.91 = 21,399.14 : x
  2. Step 2: Convert to fraction form
    39,304.07/54,237.91 = 21,399.14/x
  3. Step 3: Cross multiply
    39,304.07x = 54,237.91 × 21,399.14
  4. Step 4: Simplify right side
    39,304.07x = 1,160,644,251.21
  5. Step 5: Solve for x
    x = 1,160,644,251.21/39,304.07
  6. Step 6: Final answer
    x = 29,529.88

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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.