Home / 23,127.80-31,916.43-12,517.47

Finding the Fourth Proportional to 23,127.80, 31,916.43 and 12,517.47

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Solution

The fourth proportional to 23,127.80, 31,916.43 and 12,517.47 is: 17,274.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,127.80 : 31,916.43 = 12,517.47 : x
  2. Step 2: Convert to fraction form
    23,127.80/31,916.43 = 12,517.47/x
  3. Step 3: Cross multiply
    23,127.80x = 31,916.43 × 12,517.47
  4. Step 4: Simplify right side
    23,127.80x = 399,512,955.03
  5. Step 5: Solve for x
    x = 399,512,955.03/23,127.80
  6. Step 6: Final answer
    x = 17,274.15

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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.