Home / 36,173.09-54,275.12-18,655.22

Finding the Fourth Proportional to 36,173.09, 54,275.12 and 18,655.22

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Solution

The fourth proportional to 36,173.09, 54,275.12 and 18,655.22 is: 27,990.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,173.09 : 54,275.12 = 18,655.22 : x
  2. Step 2: Convert to fraction form
    36,173.09/54,275.12 = 18,655.22/x
  3. Step 3: Cross multiply
    36,173.09x = 54,275.12 × 18,655.22
  4. Step 4: Simplify right side
    36,173.09x = 1,012,513,939.47
  5. Step 5: Solve for x
    x = 1,012,513,939.47/36,173.09
  6. Step 6: Final answer
    x = 27,990.81

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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.