Home / 29,338.20-40,486.05-15,909.10

Finding the Fourth Proportional to 29,338.20, 40,486.05 and 15,909.10

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Solution

The fourth proportional to 29,338.20, 40,486.05 and 15,909.10 is: 21,954.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,338.20 : 40,486.05 = 15,909.10 : x
  2. Step 2: Convert to fraction form
    29,338.20/40,486.05 = 15,909.10/x
  3. Step 3: Cross multiply
    29,338.20x = 40,486.05 × 15,909.10
  4. Step 4: Simplify right side
    29,338.20x = 644,096,516.84
  5. Step 5: Solve for x
    x = 644,096,516.84/29,338.20
  6. Step 6: Final answer
    x = 21,954.19

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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.