Home / 42,387.08-63,581.23-12,805.17

Finding the Fourth Proportional to 42,387.08, 63,581.23 and 12,805.17

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Solution

The fourth proportional to 42,387.08, 63,581.23 and 12,805.17 is: 19,207.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,387.08 : 63,581.23 = 12,805.17 : x
  2. Step 2: Convert to fraction form
    42,387.08/63,581.23 = 12,805.17/x
  3. Step 3: Cross multiply
    42,387.08x = 63,581.23 × 12,805.17
  4. Step 4: Simplify right side
    42,387.08x = 814,168,394.93
  5. Step 5: Solve for x
    x = 814,168,394.93/42,387.08
  6. Step 6: Final answer
    x = 19,207.94

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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.