Home / 25,582.80-38,323.11-20,326.71

Finding the Fourth Proportional to 25,582.80, 38,323.11 and 20,326.71

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Solution

The fourth proportional to 25,582.80, 38,323.11 and 20,326.71 is: 30,449.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,582.80 : 38,323.11 = 20,326.71 : x
  2. Step 2: Convert to fraction form
    25,582.80/38,323.11 = 20,326.71/x
  3. Step 3: Cross multiply
    25,582.80x = 38,323.11 × 20,326.71
  4. Step 4: Simplify right side
    25,582.80x = 778,982,743.27
  5. Step 5: Solve for x
    x = 778,982,743.27/25,582.80
  6. Step 6: Final answer
    x = 30,449.47

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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.