Home / 23,127.28-31,915.74-12,516.91

Finding the Fourth Proportional to 23,127.28, 31,915.74 and 12,516.91

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Solution

The fourth proportional to 23,127.28, 31,915.74 and 12,516.91 is: 17,273.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,127.28 : 31,915.74 = 12,516.91 : x
  2. Step 2: Convert to fraction form
    23,127.28/31,915.74 = 12,516.91/x
  3. Step 3: Cross multiply
    23,127.28x = 31,915.74 × 12,516.91
  4. Step 4: Simplify right side
    23,127.28x = 399,486,445.16
  5. Step 5: Solve for x
    x = 399,486,445.16/23,127.28
  6. Step 6: Final answer
    x = 17,273.39

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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.