Home / 42,531.40-63,802.32-14,456.08

Finding the Fourth Proportional to 42,531.40, 63,802.32 and 14,456.08

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Solution

The fourth proportional to 42,531.40, 63,802.32 and 14,456.08 is: 21,685.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,531.40 : 63,802.32 = 14,456.08 : x
  2. Step 2: Convert to fraction form
    42,531.40/63,802.32 = 14,456.08/x
  3. Step 3: Cross multiply
    42,531.40x = 63,802.32 × 14,456.08
  4. Step 4: Simplify right side
    42,531.40x = 922,331,369.83
  5. Step 5: Solve for x
    x = 922,331,369.83/42,531.40
  6. Step 6: Final answer
    x = 21,685.89

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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.