Home / 40,990.91-61,495.01-13,286.75

Finding the Fourth Proportional to 40,990.91, 61,495.01 and 13,286.75

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Solution

The fourth proportional to 40,990.91, 61,495.01 and 13,286.75 is: 19,932.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,990.91 : 61,495.01 = 13,286.75 : x
  2. Step 2: Convert to fraction form
    40,990.91/61,495.01 = 13,286.75/x
  3. Step 3: Cross multiply
    40,990.91x = 61,495.01 × 13,286.75
  4. Step 4: Simplify right side
    40,990.91x = 817,068,824.12
  5. Step 5: Solve for x
    x = 817,068,824.12/40,990.91
  6. Step 6: Final answer
    x = 19,932.93

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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.