Home / 39,772.88-59,657.40-11,691.80

Finding the Fourth Proportional to 39,772.88, 59,657.40 and 11,691.80

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Solution

The fourth proportional to 39,772.88, 59,657.40 and 11,691.80 is: 17,537.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,772.88 : 59,657.40 = 11,691.80 : x
  2. Step 2: Convert to fraction form
    39,772.88/59,657.40 = 11,691.80/x
  3. Step 3: Cross multiply
    39,772.88x = 59,657.40 × 11,691.80
  4. Step 4: Simplify right side
    39,772.88x = 697,502,389.32
  5. Step 5: Solve for x
    x = 697,502,389.32/39,772.88
  6. Step 6: Final answer
    x = 17,537.14

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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.