Home / 40,882.32-61,321.86-12,801.78

Finding the Fourth Proportional to 40,882.32, 61,321.86 and 12,801.78

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Solution

The fourth proportional to 40,882.32, 61,321.86 and 12,801.78 is: 19,202.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,882.32 : 61,321.86 = 12,801.78 : x
  2. Step 2: Convert to fraction form
    40,882.32/61,321.86 = 12,801.78/x
  3. Step 3: Cross multiply
    40,882.32x = 61,321.86 × 12,801.78
  4. Step 4: Simplify right side
    40,882.32x = 785,028,960.91
  5. Step 5: Solve for x
    x = 785,028,960.91/40,882.32
  6. Step 6: Final answer
    x = 19,202.16

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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.