Home / 18,748.24-28,121.66-4,708.36

Finding the Fourth Proportional to 18,748.24, 28,121.66 and 4,708.36

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Solution

The fourth proportional to 18,748.24, 28,121.66 and 4,708.36 is: 7,062.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748.24 : 28,121.66 = 4,708.36 : x
  2. Step 2: Convert to fraction form
    18,748.24/28,121.66 = 4,708.36/x
  3. Step 3: Cross multiply
    18,748.24x = 28,121.66 × 4,708.36
  4. Step 4: Simplify right side
    18,748.24x = 132,406,899.08
  5. Step 5: Solve for x
    x = 132,406,899.08/18,748.24
  6. Step 6: Final answer
    x = 7,062.36

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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.