Home / 23,127.79-31,916.43-12,517.42

Finding the Fourth Proportional to 23,127.79, 31,916.43 and 12,517.42

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Solution

The fourth proportional to 23,127.79, 31,916.43 and 12,517.42 is: 17,274.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,127.79 : 31,916.43 = 12,517.42 : x
  2. Step 2: Convert to fraction form
    23,127.79/31,916.43 = 12,517.42/x
  3. Step 3: Cross multiply
    23,127.79x = 31,916.43 × 12,517.42
  4. Step 4: Simplify right side
    23,127.79x = 399,511,137.04
  5. Step 5: Solve for x
    x = 399,511,137.04/23,127.79
  6. Step 6: Final answer
    x = 17,274.08

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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.