Home / 22,909.62-34,520.51-18,840.78

Finding the Fourth Proportional to 22,909.62, 34,520.51 and 18,840.78

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Solution

The fourth proportional to 22,909.62, 34,520.51 and 18,840.78 is: 28,389.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,909.62 : 34,520.51 = 18,840.78 : x
  2. Step 2: Convert to fraction form
    22,909.62/34,520.51 = 18,840.78/x
  3. Step 3: Cross multiply
    22,909.62x = 34,520.51 × 18,840.78
  4. Step 4: Simplify right side
    22,909.62x = 650,393,334.40
  5. Step 5: Solve for x
    x = 650,393,334.40/22,909.62
  6. Step 6: Final answer
    x = 28,389.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.