Home / 39,789.59-59,685.30-13,127.02

Finding the Fourth Proportional to 39,789.59, 59,685.30 and 13,127.02

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Solution

The fourth proportional to 39,789.59, 59,685.30 and 13,127.02 is: 19,690.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,789.59 : 59,685.30 = 13,127.02 : x
  2. Step 2: Convert to fraction form
    39,789.59/59,685.30 = 13,127.02/x
  3. Step 3: Cross multiply
    39,789.59x = 59,685.30 × 13,127.02
  4. Step 4: Simplify right side
    39,789.59x = 783,489,977.59
  5. Step 5: Solve for x
    x = 783,489,977.59/39,789.59
  6. Step 6: Final answer
    x = 19,690.83

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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.