Home / 23,020.75-31,770.24-12,950.16

Finding the Fourth Proportional to 23,020.75, 31,770.24 and 12,950.16

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Solution

The fourth proportional to 23,020.75, 31,770.24 and 12,950.16 is: 17,872.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,020.75 : 31,770.24 = 12,950.16 : x
  2. Step 2: Convert to fraction form
    23,020.75/31,770.24 = 12,950.16/x
  3. Step 3: Cross multiply
    23,020.75x = 31,770.24 × 12,950.16
  4. Step 4: Simplify right side
    23,020.75x = 411,429,691.24
  5. Step 5: Solve for x
    x = 411,429,691.24/23,020.75
  6. Step 6: Final answer
    x = 17,872.12

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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.