Home / 28,368.62-39,138.12-28,324.88

Finding the Fourth Proportional to 28,368.62, 39,138.12 and 28,324.88

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Solution

The fourth proportional to 28,368.62, 39,138.12 and 28,324.88 is: 39,077.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,368.62 : 39,138.12 = 28,324.88 : x
  2. Step 2: Convert to fraction form
    28,368.62/39,138.12 = 28,324.88/x
  3. Step 3: Cross multiply
    28,368.62x = 39,138.12 × 28,324.88
  4. Step 4: Simplify right side
    28,368.62x = 1,108,582,552.43
  5. Step 5: Solve for x
    x = 1,108,582,552.43/28,368.62
  6. Step 6: Final answer
    x = 39,077.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.