Home / 42,367.68-63,491.04-21,605.76

Finding the Fourth Proportional to 42,367.68, 63,491.04 and 21,605.76

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Solution

The fourth proportional to 42,367.68, 63,491.04 and 21,605.76 is: 32,377.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,367.68 : 63,491.04 = 21,605.76 : x
  2. Step 2: Convert to fraction form
    42,367.68/63,491.04 = 21,605.76/x
  3. Step 3: Cross multiply
    42,367.68x = 63,491.04 × 21,605.76
  4. Step 4: Simplify right side
    42,367.68x = 1,371,772,172.39
  5. Step 5: Solve for x
    x = 1,371,772,172.39/42,367.68
  6. Step 6: Final answer
    x = 32,377.80

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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.