Home / 22,757.95-31,406.94-12,686.39

Finding the Fourth Proportional to 22,757.95, 31,406.94 and 12,686.39

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Solution

The fourth proportional to 22,757.95, 31,406.94 and 12,686.39 is: 17,507.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,757.95 : 31,406.94 = 12,686.39 : x
  2. Step 2: Convert to fraction form
    22,757.95/31,406.94 = 12,686.39/x
  3. Step 3: Cross multiply
    22,757.95x = 31,406.94 × 12,686.39
  4. Step 4: Simplify right side
    22,757.95x = 398,440,689.55
  5. Step 5: Solve for x
    x = 398,440,689.55/22,757.95
  6. Step 6: Final answer
    x = 17,507.76

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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.