Home / 42,459.72-63,689.49-11,294.97

Finding the Fourth Proportional to 42,459.72, 63,689.49 and 11,294.97

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Solution

The fourth proportional to 42,459.72, 63,689.49 and 11,294.97 is: 16,942.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,459.72 : 63,689.49 = 11,294.97 : x
  2. Step 2: Convert to fraction form
    42,459.72/63,689.49 = 11,294.97/x
  3. Step 3: Cross multiply
    42,459.72x = 63,689.49 × 11,294.97
  4. Step 4: Simplify right side
    42,459.72x = 719,370,878.87
  5. Step 5: Solve for x
    x = 719,370,878.87/42,459.72
  6. Step 6: Final answer
    x = 16,942.43

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1.5x scale

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.