Home / 16,728.32-25,094.40-5,631.20

Finding the Fourth Proportional to 16,728.32, 25,094.40 and 5,631.20

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Solution

The fourth proportional to 16,728.32, 25,094.40 and 5,631.20 is: 8,447.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,728.32 : 25,094.40 = 5,631.20 : x
  2. Step 2: Convert to fraction form
    16,728.32/25,094.40 = 5,631.20/x
  3. Step 3: Cross multiply
    16,728.32x = 25,094.40 × 5,631.20
  4. Step 4: Simplify right side
    16,728.32x = 141,311,585.28
  5. Step 5: Solve for x
    x = 141,311,585.28/16,728.32
  6. Step 6: Final answer
    x = 8,447.45

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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.