Home / 20,045.24-27,657.44-12,963.12

Finding the Fourth Proportional to 20,045.24, 27,657.44 and 12,963.12

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Solution

The fourth proportional to 20,045.24, 27,657.44 and 12,963.12 is: 17,885.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045.24 : 27,657.44 = 12,963.12 : x
  2. Step 2: Convert to fraction form
    20,045.24/27,657.44 = 12,963.12/x
  3. Step 3: Cross multiply
    20,045.24x = 27,657.44 × 12,963.12
  4. Step 4: Simplify right side
    20,045.24x = 358,526,713.61
  5. Step 5: Solve for x
    x = 358,526,713.61/20,045.24
  6. Step 6: Final answer
    x = 17,885.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.