Home / 21,557.40-32,336.04-6,766.38

Finding the Fourth Proportional to 21,557.40, 32,336.04 and 6,766.38

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Solution

The fourth proportional to 21,557.40, 32,336.04 and 6,766.38 is: 10,149.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,557.40 : 32,336.04 = 6,766.38 : x
  2. Step 2: Convert to fraction form
    21,557.40/32,336.04 = 6,766.38/x
  3. Step 3: Cross multiply
    21,557.40x = 32,336.04 × 6,766.38
  4. Step 4: Simplify right side
    21,557.40x = 218,797,934.34
  5. Step 5: Solve for x
    x = 218,797,934.34/21,557.40
  6. Step 6: Final answer
    x = 10,149.55

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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.