Home / 18,724.40-28,086.60-16,996.40

Finding the Fourth Proportional to 18,724.40, 28,086.60 and 16,996.40

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Solution

The fourth proportional to 18,724.40, 28,086.60 and 16,996.40 is: 25,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,724.40 : 28,086.60 = 16,996.40 : x
  2. Step 2: Convert to fraction form
    18,724.40/28,086.60 = 16,996.40/x
  3. Step 3: Cross multiply
    18,724.40x = 28,086.60 × 16,996.40
  4. Step 4: Simplify right side
    18,724.40x = 477,371,088.24
  5. Step 5: Solve for x
    x = 477,371,088.24/18,724.40
  6. Step 6: Final answer
    x = 25,494.60

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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.