Home / 18,891.48-28,343.37-9,031.52

Finding the Fourth Proportional to 18,891.48, 28,343.37 and 9,031.52

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Solution

The fourth proportional to 18,891.48, 28,343.37 and 9,031.52 is: 13,550.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,891.48 : 28,343.37 = 9,031.52 : x
  2. Step 2: Convert to fraction form
    18,891.48/28,343.37 = 9,031.52/x
  3. Step 3: Cross multiply
    18,891.48x = 28,343.37 × 9,031.52
  4. Step 4: Simplify right side
    18,891.48x = 255,983,713.02
  5. Step 5: Solve for x
    x = 255,983,713.02/18,891.48
  6. Step 6: Final answer
    x = 13,550.22

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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.