Home / 27,280.30-40,921.24-10,639.66

Finding the Fourth Proportional to 27,280.30, 40,921.24 and 10,639.66

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Solution

The fourth proportional to 27,280.30, 40,921.24 and 10,639.66 is: 15,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,280.30 : 40,921.24 = 10,639.66 : x
  2. Step 2: Convert to fraction form
    27,280.30/40,921.24 = 10,639.66/x
  3. Step 3: Cross multiply
    27,280.30x = 40,921.24 × 10,639.66
  4. Step 4: Simplify right side
    27,280.30x = 435,388,080.38
  5. Step 5: Solve for x
    x = 435,388,080.38/27,280.30
  6. Step 6: Final answer
    x = 15,959.80

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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.