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Finding the Fourth Proportional to 22,000.80, 32,962.80 and 18,928.80

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Solution

The fourth proportional to 22,000.80, 32,962.80 and 18,928.80 is: 28,360.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,000.80 : 32,962.80 = 18,928.80 : x
  2. Step 2: Convert to fraction form
    22,000.80/32,962.80 = 18,928.80/x
  3. Step 3: Cross multiply
    22,000.80x = 32,962.80 × 18,928.80
  4. Step 4: Simplify right side
    22,000.80x = 623,946,248.64
  5. Step 5: Solve for x
    x = 623,946,248.64/22,000.80
  6. Step 6: Final answer
    x = 28,360.16

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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.