Home / 28,600.11-42,882.80-12,802.14

Finding the Fourth Proportional to 28,600.11, 42,882.80 and 12,802.14

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Solution

The fourth proportional to 28,600.11, 42,882.80 and 12,802.14 is: 19,195.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,600.11 : 42,882.80 = 12,802.14 : x
  2. Step 2: Convert to fraction form
    28,600.11/42,882.80 = 12,802.14/x
  3. Step 3: Cross multiply
    28,600.11x = 42,882.80 × 12,802.14
  4. Step 4: Simplify right side
    28,600.11x = 548,991,545.18
  5. Step 5: Solve for x
    x = 548,991,545.18/28,600.11
  6. Step 6: Final answer
    x = 19,195.43

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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.