Home / 28,233.08-42,364.08-12,449.12

Finding the Fourth Proportional to 28,233.08, 42,364.08 and 12,449.12

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Solution

The fourth proportional to 28,233.08, 42,364.08 and 12,449.12 is: 18,680.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,233.08 : 42,364.08 = 12,449.12 : x
  2. Step 2: Convert to fraction form
    28,233.08/42,364.08 = 12,449.12/x
  3. Step 3: Cross multiply
    28,233.08x = 42,364.08 × 12,449.12
  4. Step 4: Simplify right side
    28,233.08x = 527,395,515.61
  5. Step 5: Solve for x
    x = 527,395,515.61/28,233.08
  6. Step 6: Final answer
    x = 18,680.06

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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.