Home / 28,442.33-42,671.69-8,723.78

Finding the Fourth Proportional to 28,442.33, 42,671.69 and 8,723.78

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Solution

The fourth proportional to 28,442.33, 42,671.69 and 8,723.78 is: 13,088.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,442.33 : 42,671.69 = 8,723.78 : x
  2. Step 2: Convert to fraction form
    28,442.33/42,671.69 = 8,723.78/x
  3. Step 3: Cross multiply
    28,442.33x = 42,671.69 × 8,723.78
  4. Step 4: Simplify right side
    28,442.33x = 372,258,392.17
  5. Step 5: Solve for x
    x = 372,258,392.17/28,442.33
  6. Step 6: Final answer
    x = 13,088.18

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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.