Home / 29,340.11-40,488.23-15,911.12

Finding the Fourth Proportional to 29,340.11, 40,488.23 and 15,911.12

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Solution

The fourth proportional to 29,340.11, 40,488.23 and 15,911.12 is: 21,956.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,340.11 : 40,488.23 = 15,911.12 : x
  2. Step 2: Convert to fraction form
    29,340.11/40,488.23 = 15,911.12/x
  3. Step 3: Cross multiply
    29,340.11x = 40,488.23 × 15,911.12
  4. Step 4: Simplify right side
    29,340.11x = 644,213,006.56
  5. Step 5: Solve for x
    x = 644,213,006.56/29,340.11
  6. Step 6: Final answer
    x = 21,956.73

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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.