Home / 28,481.74-39,304.95-15,734.77

Finding the Fourth Proportional to 28,481.74, 39,304.95 and 15,734.77

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Solution

The fourth proportional to 28,481.74, 39,304.95 and 15,734.77 is: 21,714.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,481.74 : 39,304.95 = 15,734.77 : x
  2. Step 2: Convert to fraction form
    28,481.74/39,304.95 = 15,734.77/x
  3. Step 3: Cross multiply
    28,481.74x = 39,304.95 × 15,734.77
  4. Step 4: Simplify right side
    28,481.74x = 618,454,348.11
  5. Step 5: Solve for x
    x = 618,454,348.11/28,481.74
  6. Step 6: Final answer
    x = 21,714.06

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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.