Home / 20,753.90-31,127.50-5,959.45

Finding the Fourth Proportional to 20,753.90, 31,127.50 and 5,959.45

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Solution

The fourth proportional to 20,753.90, 31,127.50 and 5,959.45 is: 8,938.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,753.90 : 31,127.50 = 5,959.45 : x
  2. Step 2: Convert to fraction form
    20,753.90/31,127.50 = 5,959.45/x
  3. Step 3: Cross multiply
    20,753.90x = 31,127.50 × 5,959.45
  4. Step 4: Simplify right side
    20,753.90x = 185,502,794.77
  5. Step 5: Solve for x
    x = 185,502,794.77/20,753.90
  6. Step 6: Final answer
    x = 8,938.21

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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.