Home / 29,080.32-40,131.20-15,832.32

Finding the Fourth Proportional to 29,080.32, 40,131.20 and 15,832.32

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Solution

The fourth proportional to 29,080.32, 40,131.20 and 15,832.32 is: 21,848.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,080.32 : 40,131.20 = 15,832.32 : x
  2. Step 2: Convert to fraction form
    29,080.32/40,131.20 = 15,832.32/x
  3. Step 3: Cross multiply
    29,080.32x = 40,131.20 × 15,832.32
  4. Step 4: Simplify right side
    29,080.32x = 635,370,000.38
  5. Step 5: Solve for x
    x = 635,370,000.38/29,080.32
  6. Step 6: Final answer
    x = 21,848.80

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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.