Home / 42,543.65-63,784.15-14,456.13

Finding the Fourth Proportional to 42,543.65, 63,784.15 and 14,456.13

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Solution

The fourth proportional to 42,543.65, 63,784.15 and 14,456.13 is: 21,673.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,543.65 : 63,784.15 = 14,456.13 : x
  2. Step 2: Convert to fraction form
    42,543.65/63,784.15 = 14,456.13/x
  3. Step 3: Cross multiply
    42,543.65x = 63,784.15 × 14,456.13
  4. Step 4: Simplify right side
    42,543.65x = 922,071,928.20
  5. Step 5: Solve for x
    x = 922,071,928.20/42,543.65
  6. Step 6: Final answer
    x = 21,673.55

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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.