Home / 20,753.01-31,151.12-12,005.01

Finding the Fourth Proportional to 20,753.01, 31,151.12 and 12,005.01

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Solution

The fourth proportional to 20,753.01, 31,151.12 and 12,005.01 is: 18,020.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,753.01 : 31,151.12 = 12,005.01 : x
  2. Step 2: Convert to fraction form
    20,753.01/31,151.12 = 12,005.01/x
  3. Step 3: Cross multiply
    20,753.01x = 31,151.12 × 12,005.01
  4. Step 4: Simplify right side
    20,753.01x = 373,969,447.09
  5. Step 5: Solve for x
    x = 373,969,447.09/20,753.01
  6. Step 6: Final answer
    x = 18,020.01

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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.