Home / 28,236.14-42,367.13-12,230.57

Finding the Fourth Proportional to 28,236.14, 42,367.13 and 12,230.57

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Solution

The fourth proportional to 28,236.14, 42,367.13 and 12,230.57 is: 18,351.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.14 : 42,367.13 = 12,230.57 : x
  2. Step 2: Convert to fraction form
    28,236.14/42,367.13 = 12,230.57/x
  3. Step 3: Cross multiply
    28,236.14x = 42,367.13 × 12,230.57
  4. Step 4: Simplify right side
    28,236.14x = 518,173,967.90
  5. Step 5: Solve for x
    x = 518,173,967.90/28,236.14
  6. Step 6: Final answer
    x = 18,351.45

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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.