Home / 39,929.60-59,908.80-38,489.60

Finding the Fourth Proportional to 39,929.60, 59,908.80 and 38,489.60

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Solution

The fourth proportional to 39,929.60, 59,908.80 and 38,489.60 is: 57,748.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,929.60 : 59,908.80 = 38,489.60 : x
  2. Step 2: Convert to fraction form
    39,929.60/59,908.80 = 38,489.60/x
  3. Step 3: Cross multiply
    39,929.60x = 59,908.80 × 38,489.60
  4. Step 4: Simplify right side
    39,929.60x = 2,305,865,748.48
  5. Step 5: Solve for x
    x = 2,305,865,748.48/39,929.60
  6. Step 6: Final answer
    x = 57,748.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.