Home / 21,423.48-32,138.28-6,633.72

Finding the Fourth Proportional to 21,423.48, 32,138.28 and 6,633.72

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Solution

The fourth proportional to 21,423.48, 32,138.28 and 6,633.72 is: 9,951.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,423.48 : 32,138.28 = 6,633.72 : x
  2. Step 2: Convert to fraction form
    21,423.48/32,138.28 = 6,633.72/x
  3. Step 3: Cross multiply
    21,423.48x = 32,138.28 × 6,633.72
  4. Step 4: Simplify right side
    21,423.48x = 213,196,350.80
  5. Step 5: Solve for x
    x = 213,196,350.80/21,423.48
  6. Step 6: Final answer
    x = 9,951.53

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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.