Home / 42,545.13-63,817.71-19,144.23

Finding the Fourth Proportional to 42,545.13, 63,817.71 and 19,144.23

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Solution

The fourth proportional to 42,545.13, 63,817.71 and 19,144.23 is: 28,716.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,545.13 : 63,817.71 = 19,144.23 : x
  2. Step 2: Convert to fraction form
    42,545.13/63,817.71 = 19,144.23/x
  3. Step 3: Cross multiply
    42,545.13x = 63,817.71 × 19,144.23
  4. Step 4: Simplify right side
    42,545.13x = 1,221,740,918.31
  5. Step 5: Solve for x
    x = 1,221,740,918.31/42,545.13
  6. Step 6: Final answer
    x = 28,716.35

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Double scale
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Similar ratio
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1.5x scale

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.