Home / 39,387.40-59,080.78-9,805.02

Finding the Fourth Proportional to 39,387.40, 59,080.78 and 9,805.02

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Solution

The fourth proportional to 39,387.40, 59,080.78 and 9,805.02 is: 14,707.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,387.40 : 59,080.78 = 9,805.02 : x
  2. Step 2: Convert to fraction form
    39,387.40/59,080.78 = 9,805.02/x
  3. Step 3: Cross multiply
    39,387.40x = 59,080.78 × 9,805.02
  4. Step 4: Simplify right side
    39,387.40x = 579,288,229.52
  5. Step 5: Solve for x
    x = 579,288,229.52/39,387.40
  6. Step 6: Final answer
    x = 14,707.45

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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.