Home / 28,306.97-42,460.55-8,585.69

Finding the Fourth Proportional to 28,306.97, 42,460.55 and 8,585.69

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Solution

The fourth proportional to 28,306.97, 42,460.55 and 8,585.69 is: 12,878.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,306.97 : 42,460.55 = 8,585.69 : x
  2. Step 2: Convert to fraction form
    28,306.97/42,460.55 = 8,585.69/x
  3. Step 3: Cross multiply
    28,306.97x = 42,460.55 × 8,585.69
  4. Step 4: Simplify right side
    28,306.97x = 364,553,076.60
  5. Step 5: Solve for x
    x = 364,553,076.60/28,306.97
  6. Step 6: Final answer
    x = 12,878.56

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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.