Home / 28,284.74-42,429.17-8,564.84

Finding the Fourth Proportional to 28,284.74, 42,429.17 and 8,564.84

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Solution

The fourth proportional to 28,284.74, 42,429.17 and 8,564.84 is: 12,847.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,284.74 : 42,429.17 = 8,564.84 : x
  2. Step 2: Convert to fraction form
    28,284.74/42,429.17 = 8,564.84/x
  3. Step 3: Cross multiply
    28,284.74x = 42,429.17 × 8,564.84
  4. Step 4: Simplify right side
    28,284.74x = 363,398,972.58
  5. Step 5: Solve for x
    x = 363,398,972.58/28,284.74
  6. Step 6: Final answer
    x = 12,847.88

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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.