Home / 21,520.34-32,282.50-8,373.70

Finding the Fourth Proportional to 21,520.34, 32,282.50 and 8,373.70

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Solution

The fourth proportional to 21,520.34, 32,282.50 and 8,373.70 is: 12,561.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,520.34 : 32,282.50 = 8,373.70 : x
  2. Step 2: Convert to fraction form
    21,520.34/32,282.50 = 8,373.70/x
  3. Step 3: Cross multiply
    21,520.34x = 32,282.50 × 8,373.70
  4. Step 4: Simplify right side
    21,520.34x = 270,323,970.25
  5. Step 5: Solve for x
    x = 270,323,970.25/21,520.34
  6. Step 6: Final answer
    x = 12,561.32

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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.