Home / 22,589.28-31,170.66-12,515.17

Finding the Fourth Proportional to 22,589.28, 31,170.66 and 12,515.17

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Solution

The fourth proportional to 22,589.28, 31,170.66 and 12,515.17 is: 17,269.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,589.28 : 31,170.66 = 12,515.17 : x
  2. Step 2: Convert to fraction form
    22,589.28/31,170.66 = 12,515.17/x
  3. Step 3: Cross multiply
    22,589.28x = 31,170.66 × 12,515.17
  4. Step 4: Simplify right side
    22,589.28x = 390,106,218.13
  5. Step 5: Solve for x
    x = 390,106,218.13/22,589.28
  6. Step 6: Final answer
    x = 17,269.53

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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.