Home / 29,301.12-40,436.08-15,872.94

Finding the Fourth Proportional to 29,301.12, 40,436.08 and 15,872.94

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Solution

The fourth proportional to 29,301.12, 40,436.08 and 15,872.94 is: 21,904.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,301.12 : 40,436.08 = 15,872.94 : x
  2. Step 2: Convert to fraction form
    29,301.12/40,436.08 = 15,872.94/x
  3. Step 3: Cross multiply
    29,301.12x = 40,436.08 × 15,872.94
  4. Step 4: Simplify right side
    29,301.12x = 641,839,471.68
  5. Step 5: Solve for x
    x = 641,839,471.68/29,301.12
  6. Step 6: Final answer
    x = 21,904.95

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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.