Home / 22,660.28-31,272.57-12,588.80

Finding the Fourth Proportional to 22,660.28, 31,272.57 and 12,588.80

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Solution

The fourth proportional to 22,660.28, 31,272.57 and 12,588.80 is: 17,373.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,660.28 : 31,272.57 = 12,588.80 : x
  2. Step 2: Convert to fraction form
    22,660.28/31,272.57 = 12,588.80/x
  3. Step 3: Cross multiply
    22,660.28x = 31,272.57 × 12,588.80
  4. Step 4: Simplify right side
    22,660.28x = 393,684,207.40
  5. Step 5: Solve for x
    x = 393,684,207.40/22,660.28
  6. Step 6: Final answer
    x = 17,373.32

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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.