Home / 21,775.20-32,630.04-16,202.40

Finding the Fourth Proportional to 21,775.20, 32,630.04 and 16,202.40

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Solution

The fourth proportional to 21,775.20, 32,630.04 and 16,202.40 is: 24,279.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,775.20 : 32,630.04 = 16,202.40 : x
  2. Step 2: Convert to fraction form
    21,775.20/32,630.04 = 16,202.40/x
  3. Step 3: Cross multiply
    21,775.20x = 32,630.04 × 16,202.40
  4. Step 4: Simplify right side
    21,775.20x = 528,684,960.10
  5. Step 5: Solve for x
    x = 528,684,960.10/21,775.20
  6. Step 6: Final answer
    x = 24,279.22

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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.