Home / 20,386.14-30,582.25-7,237.41

Finding the Fourth Proportional to 20,386.14, 30,582.25 and 7,237.41

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Solution

The fourth proportional to 20,386.14, 30,582.25 and 7,237.41 is: 10,857.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386.14 : 30,582.25 = 7,237.41 : x
  2. Step 2: Convert to fraction form
    20,386.14/30,582.25 = 7,237.41/x
  3. Step 3: Cross multiply
    20,386.14x = 30,582.25 × 7,237.41
  4. Step 4: Simplify right side
    20,386.14x = 221,336,281.97
  5. Step 5: Solve for x
    x = 221,336,281.97/20,386.14
  6. Step 6: Final answer
    x = 10,857.19

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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.