Home / 18,129.47-25,005.96-17,519.84

Finding the Fourth Proportional to 18,129.47, 25,005.96 and 17,519.84

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Solution

The fourth proportional to 18,129.47, 25,005.96 and 17,519.84 is: 24,165.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.47 : 25,005.96 = 17,519.84 : x
  2. Step 2: Convert to fraction form
    18,129.47/25,005.96 = 17,519.84/x
  3. Step 3: Cross multiply
    18,129.47x = 25,005.96 × 17,519.84
  4. Step 4: Simplify right side
    18,129.47x = 438,100,418.25
  5. Step 5: Solve for x
    x = 438,100,418.25/18,129.47
  6. Step 6: Final answer
    x = 24,165.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.