Home / 21,447.40-32,160.13-8,964.02

Finding the Fourth Proportional to 21,447.40, 32,160.13 and 8,964.02

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Solution

The fourth proportional to 21,447.40, 32,160.13 and 8,964.02 is: 13,441.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,447.40 : 32,160.13 = 8,964.02 : x
  2. Step 2: Convert to fraction form
    21,447.40/32,160.13 = 8,964.02/x
  3. Step 3: Cross multiply
    21,447.40x = 32,160.13 × 8,964.02
  4. Step 4: Simplify right side
    21,447.40x = 288,283,842.90
  5. Step 5: Solve for x
    x = 288,283,842.90/21,447.40
  6. Step 6: Final answer
    x = 13,441.44

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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.