Home / 22,759.07-31,407.03-12,686.90

Finding the Fourth Proportional to 22,759.07, 31,407.03 and 12,686.90

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Solution

The fourth proportional to 22,759.07, 31,407.03 and 12,686.90 is: 17,507.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,759.07 : 31,407.03 = 12,686.90 : x
  2. Step 2: Convert to fraction form
    22,759.07/31,407.03 = 12,686.90/x
  3. Step 3: Cross multiply
    22,759.07x = 31,407.03 × 12,686.90
  4. Step 4: Simplify right side
    22,759.07x = 398,457,691.87
  5. Step 5: Solve for x
    x = 398,457,691.87/22,759.07
  6. Step 6: Final answer
    x = 17,507.65

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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.