Home / 18,543.04-27,679.68-17,172.52

Finding the Fourth Proportional to 18,543.04, 27,679.68 and 17,172.52

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Solution

The fourth proportional to 18,543.04, 27,679.68 and 17,172.52 is: 25,633.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543.04 : 27,679.68 = 17,172.52 : x
  2. Step 2: Convert to fraction form
    18,543.04/27,679.68 = 17,172.52/x
  3. Step 3: Cross multiply
    18,543.04x = 27,679.68 × 17,172.52
  4. Step 4: Simplify right side
    18,543.04x = 475,329,970.52
  5. Step 5: Solve for x
    x = 475,329,970.52/18,543.04
  6. Step 6: Final answer
    x = 25,633.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.