Home / 19,615.60-29,380.20-17,426.80

Finding the Fourth Proportional to 19,615.60, 29,380.20 and 17,426.80

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Solution

The fourth proportional to 19,615.60, 29,380.20 and 17,426.80 is: 26,101.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.60 : 29,380.20 = 17,426.80 : x
  2. Step 2: Convert to fraction form
    19,615.60/29,380.20 = 17,426.80/x
  3. Step 3: Cross multiply
    19,615.60x = 29,380.20 × 17,426.80
  4. Step 4: Simplify right side
    19,615.60x = 512,002,869.36
  5. Step 5: Solve for x
    x = 512,002,869.36/19,615.60
  6. Step 6: Final answer
    x = 26,101.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.