Home / 20,340.01-28,082.27-13,964.55

Finding the Fourth Proportional to 20,340.01, 28,082.27 and 13,964.55

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Solution

The fourth proportional to 20,340.01, 28,082.27 and 13,964.55 is: 19,280.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,340.01 : 28,082.27 = 13,964.55 : x
  2. Step 2: Convert to fraction form
    20,340.01/28,082.27 = 13,964.55/x
  3. Step 3: Cross multiply
    20,340.01x = 28,082.27 × 13,964.55
  4. Step 4: Simplify right side
    20,340.01x = 392,156,311.82
  5. Step 5: Solve for x
    x = 392,156,311.82/20,340.01
  6. Step 6: Final answer
    x = 19,280.04

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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.