Home / 21,179.23-31,748.17-10,082.93

Finding the Fourth Proportional to 21,179.23, 31,748.17 and 10,082.93

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Solution

The fourth proportional to 21,179.23, 31,748.17 and 10,082.93 is: 15,114.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,179.23 : 31,748.17 = 10,082.93 : x
  2. Step 2: Convert to fraction form
    21,179.23/31,748.17 = 10,082.93/x
  3. Step 3: Cross multiply
    21,179.23x = 31,748.17 × 10,082.93
  4. Step 4: Simplify right side
    21,179.23x = 320,114,575.74
  5. Step 5: Solve for x
    x = 320,114,575.74/21,179.23
  6. Step 6: Final answer
    x = 15,114.55

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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.