Home / 27,103.68-40,639.32-10,449.90

Finding the Fourth Proportional to 27,103.68, 40,639.32 and 10,449.90

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Solution

The fourth proportional to 27,103.68, 40,639.32 and 10,449.90 is: 15,668.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,103.68 : 40,639.32 = 10,449.90 : x
  2. Step 2: Convert to fraction form
    27,103.68/40,639.32 = 10,449.90/x
  3. Step 3: Cross multiply
    27,103.68x = 40,639.32 × 10,449.90
  4. Step 4: Simplify right side
    27,103.68x = 424,676,830.07
  5. Step 5: Solve for x
    x = 424,676,830.07/27,103.68
  6. Step 6: Final answer
    x = 15,668.60

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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.