Home / 21,955.28-32,909.30-9,481.17

Finding the Fourth Proportional to 21,955.28, 32,909.30 and 9,481.17

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Solution

The fourth proportional to 21,955.28, 32,909.30 and 9,481.17 is: 14,211.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955.28 : 32,909.30 = 9,481.17 : x
  2. Step 2: Convert to fraction form
    21,955.28/32,909.30 = 9,481.17/x
  3. Step 3: Cross multiply
    21,955.28x = 32,909.30 × 9,481.17
  4. Step 4: Simplify right side
    21,955.28x = 312,018,779.44
  5. Step 5: Solve for x
    x = 312,018,779.44/21,955.28
  6. Step 6: Final answer
    x = 14,211.56

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1.5x scale

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.