Home / 21,763.20-32,641.28-8,611.84

Finding the Fourth Proportional to 21,763.20, 32,641.28 and 8,611.84

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Solution

The fourth proportional to 21,763.20, 32,641.28 and 8,611.84 is: 12,916.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,763.20 : 32,641.28 = 8,611.84 : x
  2. Step 2: Convert to fraction form
    21,763.20/32,641.28 = 8,611.84/x
  3. Step 3: Cross multiply
    21,763.20x = 32,641.28 × 8,611.84
  4. Step 4: Simplify right side
    21,763.20x = 281,101,480.76
  5. Step 5: Solve for x
    x = 281,101,480.76/21,763.20
  6. Step 6: Final answer
    x = 12,916.37

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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.