Home / 28,236.95-42,359.09-8,517.50

Finding the Fourth Proportional to 28,236.95, 42,359.09 and 8,517.50

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Solution

The fourth proportional to 28,236.95, 42,359.09 and 8,517.50 is: 12,777.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.95 : 42,359.09 = 8,517.50 : x
  2. Step 2: Convert to fraction form
    28,236.95/42,359.09 = 8,517.50/x
  3. Step 3: Cross multiply
    28,236.95x = 42,359.09 × 8,517.50
  4. Step 4: Simplify right side
    28,236.95x = 360,793,358.57
  5. Step 5: Solve for x
    x = 360,793,358.57/28,236.95
  6. Step 6: Final answer
    x = 12,777.35

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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.