Home / 20,731.02-31,073.92-10,180.09

Finding the Fourth Proportional to 20,731.02, 31,073.92 and 10,180.09

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Solution

The fourth proportional to 20,731.02, 31,073.92 and 10,180.09 is: 15,259.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731.02 : 31,073.92 = 10,180.09 : x
  2. Step 2: Convert to fraction form
    20,731.02/31,073.92 = 10,180.09/x
  3. Step 3: Cross multiply
    20,731.02x = 31,073.92 × 10,180.09
  4. Step 4: Simplify right side
    20,731.02x = 316,335,302.25
  5. Step 5: Solve for x
    x = 316,335,302.25/20,731.02
  6. Step 6: Final answer
    x = 15,259.03

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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.