Home / 23,126.79-31,915.19-12,516.65

Finding the Fourth Proportional to 23,126.79, 31,915.19 and 12,516.65

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Solution

The fourth proportional to 23,126.79, 31,915.19 and 12,516.65 is: 17,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,126.79 : 31,915.19 = 12,516.65 : x
  2. Step 2: Convert to fraction form
    23,126.79/31,915.19 = 12,516.65/x
  3. Step 3: Cross multiply
    23,126.79x = 31,915.19 × 12,516.65
  4. Step 4: Simplify right side
    23,126.79x = 399,471,262.91
  5. Step 5: Solve for x
    x = 399,471,262.91/23,126.79
  6. Step 6: Final answer
    x = 17,273.10

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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.