Home / 28,071.79-42,082.92-11,445.73

Finding the Fourth Proportional to 28,071.79, 42,082.92 and 11,445.73

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Solution

The fourth proportional to 28,071.79, 42,082.92 and 11,445.73 is: 17,158.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071.79 : 42,082.92 = 11,445.73 : x
  2. Step 2: Convert to fraction form
    28,071.79/42,082.92 = 11,445.73/x
  3. Step 3: Cross multiply
    28,071.79x = 42,082.92 × 11,445.73
  4. Step 4: Simplify right side
    28,071.79x = 481,669,634.72
  5. Step 5: Solve for x
    x = 481,669,634.72/28,071.79
  6. Step 6: Final answer
    x = 17,158.50

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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.