Home / 21,454.20-32,193.45-8,307.50

Finding the Fourth Proportional to 21,454.20, 32,193.45 and 8,307.50

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Solution

The fourth proportional to 21,454.20, 32,193.45 and 8,307.50 is: 12,465.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.20 : 32,193.45 = 8,307.50 : x
  2. Step 2: Convert to fraction form
    21,454.20/32,193.45 = 8,307.50/x
  3. Step 3: Cross multiply
    21,454.20x = 32,193.45 × 8,307.50
  4. Step 4: Simplify right side
    21,454.20x = 267,446,924.91
  5. Step 5: Solve for x
    x = 267,446,924.91/21,454.20
  6. Step 6: Final answer
    x = 12,465.95

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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.