Home / 20,922.52-28,873.10-11,362.41

Finding the Fourth Proportional to 20,922.52, 28,873.10 and 11,362.41

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Solution

The fourth proportional to 20,922.52, 28,873.10 and 11,362.41 is: 15,680.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,922.52 : 28,873.10 = 11,362.41 : x
  2. Step 2: Convert to fraction form
    20,922.52/28,873.10 = 11,362.41/x
  3. Step 3: Cross multiply
    20,922.52x = 28,873.10 × 11,362.41
  4. Step 4: Simplify right side
    20,922.52x = 328,068,000.17
  5. Step 5: Solve for x
    x = 328,068,000.17/20,922.52
  6. Step 6: Final answer
    x = 15,680.14

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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.