Home / 28,335.66-42,508.56-11,686.44

Finding the Fourth Proportional to 28,335.66, 42,508.56 and 11,686.44

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Solution

The fourth proportional to 28,335.66, 42,508.56 and 11,686.44 is: 17,531.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.66 : 42,508.56 = 11,686.44 : x
  2. Step 2: Convert to fraction form
    28,335.66/42,508.56 = 11,686.44/x
  3. Step 3: Cross multiply
    28,335.66x = 42,508.56 × 11,686.44
  4. Step 4: Simplify right side
    28,335.66x = 496,773,735.93
  5. Step 5: Solve for x
    x = 496,773,735.93/28,335.66
  6. Step 6: Final answer
    x = 17,531.75

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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.