Home / 42,401.10-63,601.65-21,665.10

Finding the Fourth Proportional to 42,401.10, 63,601.65 and 21,665.10

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Solution

The fourth proportional to 42,401.10, 63,601.65 and 21,665.10 is: 32,497.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,401.10 : 63,601.65 = 21,665.10 : x
  2. Step 2: Convert to fraction form
    42,401.10/63,601.65 = 21,665.10/x
  3. Step 3: Cross multiply
    42,401.10x = 63,601.65 × 21,665.10
  4. Step 4: Simplify right side
    42,401.10x = 1,377,936,107.42
  5. Step 5: Solve for x
    x = 1,377,936,107.42/42,401.10
  6. Step 6: Final answer
    x = 32,497.65

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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.