Home / 42,369.68-63,494.04-21,607.76

Finding the Fourth Proportional to 42,369.68, 63,494.04 and 21,607.76

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Solution

The fourth proportional to 42,369.68, 63,494.04 and 21,607.76 is: 32,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,369.68 : 63,494.04 = 21,607.76 : x
  2. Step 2: Convert to fraction form
    42,369.68/63,494.04 = 21,607.76/x
  3. Step 3: Cross multiply
    42,369.68x = 63,494.04 × 21,607.76
  4. Step 4: Simplify right side
    42,369.68x = 1,371,963,977.75
  5. Step 5: Solve for x
    x = 1,371,963,977.75/42,369.68
  6. Step 6: Final answer
    x = 32,380.80

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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.