Home / 29,218.32-40,299.12-20,732.76

Finding the Fourth Proportional to 29,218.32, 40,299.12 and 20,732.76

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Solution

The fourth proportional to 29,218.32, 40,299.12 and 20,732.76 is: 28,595.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,218.32 : 40,299.12 = 20,732.76 : x
  2. Step 2: Convert to fraction form
    29,218.32/40,299.12 = 20,732.76/x
  3. Step 3: Cross multiply
    29,218.32x = 40,299.12 × 20,732.76
  4. Step 4: Simplify right side
    29,218.32x = 835,511,983.17
  5. Step 5: Solve for x
    x = 835,511,983.17/29,218.32
  6. Step 6: Final answer
    x = 28,595.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.