Home / 42,005.66-63,008.28-12,423.65

Finding the Fourth Proportional to 42,005.66, 63,008.28 and 12,423.65

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Solution

The fourth proportional to 42,005.66, 63,008.28 and 12,423.65 is: 18,635.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,005.66 : 63,008.28 = 12,423.65 : x
  2. Step 2: Convert to fraction form
    42,005.66/63,008.28 = 12,423.65/x
  3. Step 3: Cross multiply
    42,005.66x = 63,008.28 × 12,423.65
  4. Step 4: Simplify right side
    42,005.66x = 782,792,502.78
  5. Step 5: Solve for x
    x = 782,792,502.78/42,005.66
  6. Step 6: Final answer
    x = 18,635.41

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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.