Home / 18,213.60-25,084.08-16,877.28

Finding the Fourth Proportional to 18,213.60, 25,084.08 and 16,877.28

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Solution

The fourth proportional to 18,213.60, 25,084.08 and 16,877.28 is: 23,243.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,213.60 : 25,084.08 = 16,877.28 : x
  2. Step 2: Convert to fraction form
    18,213.60/25,084.08 = 16,877.28/x
  3. Step 3: Cross multiply
    18,213.60x = 25,084.08 × 16,877.28
  4. Step 4: Simplify right side
    18,213.60x = 423,351,041.70
  5. Step 5: Solve for x
    x = 423,351,041.70/18,213.60
  6. Step 6: Final answer
    x = 23,243.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.