Home / 19,711.44-29,569.32-8,621.28

Finding the Fourth Proportional to 19,711.44, 29,569.32 and 8,621.28

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Solution

The fourth proportional to 19,711.44, 29,569.32 and 8,621.28 is: 12,932.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,711.44 : 29,569.32 = 8,621.28 : x
  2. Step 2: Convert to fraction form
    19,711.44/29,569.32 = 8,621.28/x
  3. Step 3: Cross multiply
    19,711.44x = 29,569.32 × 8,621.28
  4. Step 4: Simplify right side
    19,711.44x = 254,925,387.13
  5. Step 5: Solve for x
    x = 254,925,387.13/19,711.44
  6. Step 6: Final answer
    x = 12,932.86

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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.