Home / 42,463.92-63,702.64-12,874.80

Finding the Fourth Proportional to 42,463.92, 63,702.64 and 12,874.80

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Solution

The fourth proportional to 42,463.92, 63,702.64 and 12,874.80 is: 19,314.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,463.92 : 63,702.64 = 12,874.80 : x
  2. Step 2: Convert to fraction form
    42,463.92/63,702.64 = 12,874.80/x
  3. Step 3: Cross multiply
    42,463.92x = 63,702.64 × 12,874.80
  4. Step 4: Simplify right side
    42,463.92x = 820,158,749.47
  5. Step 5: Solve for x
    x = 820,158,749.47/42,463.92
  6. Step 6: Final answer
    x = 19,314.25

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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.