Home / 18,877.24-28,319.51-5,731.55

Finding the Fourth Proportional to 18,877.24, 28,319.51 and 5,731.55

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Solution

The fourth proportional to 18,877.24, 28,319.51 and 5,731.55 is: 8,598.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.24 : 28,319.51 = 5,731.55 : x
  2. Step 2: Convert to fraction form
    18,877.24/28,319.51 = 5,731.55/x
  3. Step 3: Cross multiply
    18,877.24x = 28,319.51 × 5,731.55
  4. Step 4: Simplify right side
    18,877.24x = 162,314,687.54
  5. Step 5: Solve for x
    x = 162,314,687.54/18,877.24
  6. Step 6: Final answer
    x = 8,598.43

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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.