Home / 21,965.10-32,931.45-9,474.90

Finding the Fourth Proportional to 21,965.10, 32,931.45 and 9,474.90

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Solution

The fourth proportional to 21,965.10, 32,931.45 and 9,474.90 is: 14,205.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,965.10 : 32,931.45 = 9,474.90 : x
  2. Step 2: Convert to fraction form
    21,965.10/32,931.45 = 9,474.90/x
  3. Step 3: Cross multiply
    21,965.10x = 32,931.45 × 9,474.90
  4. Step 4: Simplify right side
    21,965.10x = 312,022,195.61
  5. Step 5: Solve for x
    x = 312,022,195.61/21,965.10
  6. Step 6: Final answer
    x = 14,205.36

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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.