Home / 27,143.66-40,761.72-17,672.10

Finding the Fourth Proportional to 27,143.66, 40,761.72 and 17,672.10

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Solution

The fourth proportional to 27,143.66, 40,761.72 and 17,672.10 is: 26,538.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,143.66 : 40,761.72 = 17,672.10 : x
  2. Step 2: Convert to fraction form
    27,143.66/40,761.72 = 17,672.10/x
  3. Step 3: Cross multiply
    27,143.66x = 40,761.72 × 17,672.10
  4. Step 4: Simplify right side
    27,143.66x = 720,345,192.01
  5. Step 5: Solve for x
    x = 720,345,192.01/27,143.66
  6. Step 6: Final answer
    x = 26,538.25

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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.