Home / 20,717.60-31,052.10-10,851.80

Finding the Fourth Proportional to 20,717.60, 31,052.10 and 10,851.80

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Solution

The fourth proportional to 20,717.60, 31,052.10 and 10,851.80 is: 16,264.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,717.60 : 31,052.10 = 10,851.80 : x
  2. Step 2: Convert to fraction form
    20,717.60/31,052.10 = 10,851.80/x
  3. Step 3: Cross multiply
    20,717.60x = 31,052.10 × 10,851.80
  4. Step 4: Simplify right side
    20,717.60x = 336,971,178.78
  5. Step 5: Solve for x
    x = 336,971,178.78/20,717.60
  6. Step 6: Final answer
    x = 16,264.97

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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.