Home / 20,740.77-31,082.00-9,029.39

Finding the Fourth Proportional to 20,740.77, 31,082.00 and 9,029.39

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Solution

The fourth proportional to 20,740.77, 31,082.00 and 9,029.39 is: 13,531.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,740.77 : 31,082.00 = 9,029.39 : x
  2. Step 2: Convert to fraction form
    20,740.77/31,082.00 = 9,029.39/x
  3. Step 3: Cross multiply
    20,740.77x = 31,082.00 × 9,029.39
  4. Step 4: Simplify right side
    20,740.77x = 280,651,299.42
  5. Step 5: Solve for x
    x = 280,651,299.42/20,740.77
  6. Step 6: Final answer
    x = 13,531.38

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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.