Home / 28,023.50-38,673.24-15,449.06

Finding the Fourth Proportional to 28,023.50, 38,673.24 and 15,449.06

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Solution

The fourth proportional to 28,023.50, 38,673.24 and 15,449.06 is: 21,320.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023.50 : 38,673.24 = 15,449.06 : x
  2. Step 2: Convert to fraction form
    28,023.50/38,673.24 = 15,449.06/x
  3. Step 3: Cross multiply
    28,023.50x = 38,673.24 × 15,449.06
  4. Step 4: Simplify right side
    28,023.50x = 597,465,205.15
  5. Step 5: Solve for x
    x = 597,465,205.15/28,023.50
  6. Step 6: Final answer
    x = 21,320.15

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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.