Home / 42,242.92-63,363.66-12,660.28

Finding the Fourth Proportional to 42,242.92, 63,363.66 and 12,660.28

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Solution

The fourth proportional to 42,242.92, 63,363.66 and 12,660.28 is: 18,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,242.92 : 63,363.66 = 12,660.28 : x
  2. Step 2: Convert to fraction form
    42,242.92/63,363.66 = 12,660.28/x
  3. Step 3: Cross multiply
    42,242.92x = 63,363.66 × 12,660.28
  4. Step 4: Simplify right side
    42,242.92x = 802,201,677.42
  5. Step 5: Solve for x
    x = 802,201,677.42/42,242.92
  6. Step 6: Final answer
    x = 18,990.20

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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.