Home / 18,824.56-28,230.14-13,543.64

Finding the Fourth Proportional to 18,824.56, 28,230.14 and 13,543.64

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Solution

The fourth proportional to 18,824.56, 28,230.14 and 13,543.64 is: 20,310.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,824.56 : 28,230.14 = 13,543.64 : x
  2. Step 2: Convert to fraction form
    18,824.56/28,230.14 = 13,543.64/x
  3. Step 3: Cross multiply
    18,824.56x = 28,230.14 × 13,543.64
  4. Step 4: Simplify right side
    18,824.56x = 382,338,853.31
  5. Step 5: Solve for x
    x = 382,338,853.31/18,824.56
  6. Step 6: Final answer
    x = 20,310.64

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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.