Home / 21,442.62-32,159.99-8,959.30

Finding the Fourth Proportional to 21,442.62, 32,159.99 and 8,959.30

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Solution

The fourth proportional to 21,442.62, 32,159.99 and 8,959.30 is: 13,437.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,442.62 : 32,159.99 = 8,959.30 : x
  2. Step 2: Convert to fraction form
    21,442.62/32,159.99 = 8,959.30/x
  3. Step 3: Cross multiply
    21,442.62x = 32,159.99 × 8,959.30
  4. Step 4: Simplify right side
    21,442.62x = 288,130,844.78
  5. Step 5: Solve for x
    x = 288,130,844.78/21,442.62
  6. Step 6: Final answer
    x = 13,437.29

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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.