Home / 17,820-26,731.52-4,672.32

Finding the Fourth Proportional to 17,820, 26,731.52 and 4,672.32

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Solution

The fourth proportional to 17,820, 26,731.52 and 4,672.32 is: 7,008.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,820 : 26,731.52 = 4,672.32 : x
  2. Step 2: Convert to fraction form
    17,820/26,731.52 = 4,672.32/x
  3. Step 3: Cross multiply
    17,820x = 26,731.52 × 4,672.32
  4. Step 4: Simplify right side
    17,820x = 124,898,215.53
  5. Step 5: Solve for x
    x = 124,898,215.53/17,820
  6. Step 6: Final answer
    x = 7,008.88

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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.