Home / 28,344.20-39,115.10-15,597.43

Finding the Fourth Proportional to 28,344.20, 39,115.10 and 15,597.43

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Solution

The fourth proportional to 28,344.20, 39,115.10 and 15,597.43 is: 21,524.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,344.20 : 39,115.10 = 15,597.43 : x
  2. Step 2: Convert to fraction form
    28,344.20/39,115.10 = 15,597.43/x
  3. Step 3: Cross multiply
    28,344.20x = 39,115.10 × 15,597.43
  4. Step 4: Simplify right side
    28,344.20x = 610,094,975.40
  5. Step 5: Solve for x
    x = 610,094,975.40/28,344.20
  6. Step 6: Final answer
    x = 21,524.51

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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.