Home / 22,687.63-31,307.92-13,127.02

Finding the Fourth Proportional to 22,687.63, 31,307.92 and 13,127.02

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Solution

The fourth proportional to 22,687.63, 31,307.92 and 13,127.02 is: 18,114.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,687.63 : 31,307.92 = 13,127.02 : x
  2. Step 2: Convert to fraction form
    22,687.63/31,307.92 = 13,127.02/x
  3. Step 3: Cross multiply
    22,687.63x = 31,307.92 × 13,127.02
  4. Step 4: Simplify right side
    22,687.63x = 410,979,668.96
  5. Step 5: Solve for x
    x = 410,979,668.96/22,687.63
  6. Step 6: Final answer
    x = 18,114.70

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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.