Home / 22,659.28-31,274.80-12,591.18

Finding the Fourth Proportional to 22,659.28, 31,274.80 and 12,591.18

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Solution

The fourth proportional to 22,659.28, 31,274.80 and 12,591.18 is: 17,378.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,659.28 : 31,274.80 = 12,591.18 : x
  2. Step 2: Convert to fraction form
    22,659.28/31,274.80 = 12,591.18/x
  3. Step 3: Cross multiply
    22,659.28x = 31,274.80 × 12,591.18
  4. Step 4: Simplify right side
    22,659.28x = 393,786,589.55
  5. Step 5: Solve for x
    x = 393,786,589.55/22,659.28
  6. Step 6: Final answer
    x = 17,378.60

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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.