Home / 42,348.60-63,502.38-12,760.92

Finding the Fourth Proportional to 42,348.60, 63,502.38 and 12,760.92

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Solution

The fourth proportional to 42,348.60, 63,502.38 and 12,760.92 is: 19,135.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,348.60 : 63,502.38 = 12,760.92 : x
  2. Step 2: Convert to fraction form
    42,348.60/63,502.38 = 12,760.92/x
  3. Step 3: Cross multiply
    42,348.60x = 63,502.38 × 12,760.92
  4. Step 4: Simplify right side
    42,348.60x = 810,348,790.99
  5. Step 5: Solve for x
    x = 810,348,790.99/42,348.60
  6. Step 6: Final answer
    x = 19,135.20

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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.