Home / 28,202.18-42,290.81-8,476.95

Finding the Fourth Proportional to 28,202.18, 42,290.81 and 8,476.95

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Solution

The fourth proportional to 28,202.18, 42,290.81 and 8,476.95 is: 12,711.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,202.18 : 42,290.81 = 8,476.95 : x
  2. Step 2: Convert to fraction form
    28,202.18/42,290.81 = 8,476.95/x
  3. Step 3: Cross multiply
    28,202.18x = 42,290.81 × 8,476.95
  4. Step 4: Simplify right side
    28,202.18x = 358,497,229.82
  5. Step 5: Solve for x
    x = 358,497,229.82/28,202.18
  6. Step 6: Final answer
    x = 12,711.69

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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.