Home / 28,971.52-43,387.20-20,062

Finding the Fourth Proportional to 28,971.52, 43,387.20 and 20,062

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Solution

The fourth proportional to 28,971.52, 43,387.20 and 20,062 is: 30,044.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.52 : 43,387.20 = 20,062 : x
  2. Step 2: Convert to fraction form
    28,971.52/43,387.20 = 20,062/x
  3. Step 3: Cross multiply
    28,971.52x = 43,387.20 × 20,062
  4. Step 4: Simplify right side
    28,971.52x = 870,434,006.40
  5. Step 5: Solve for x
    x = 870,434,006.40/28,971.52
  6. Step 6: Final answer
    x = 30,044.47

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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.