Home / 20,727.40-31,167.90-17,348.20

Finding the Fourth Proportional to 20,727.40, 31,167.90 and 17,348.20

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Solution

The fourth proportional to 20,727.40, 31,167.90 and 17,348.20 is: 26,086.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.40 : 31,167.90 = 17,348.20 : x
  2. Step 2: Convert to fraction form
    20,727.40/31,167.90 = 17,348.20/x
  3. Step 3: Cross multiply
    20,727.40x = 31,167.90 × 17,348.20
  4. Step 4: Simplify right side
    20,727.40x = 540,706,962.78
  5. Step 5: Solve for x
    x = 540,706,962.78/20,727.40
  6. Step 6: Final answer
    x = 26,086.58

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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.