Home / 20,304.14-30,424.28-15,618.48

Finding the Fourth Proportional to 20,304.14, 30,424.28 and 15,618.48

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Solution

The fourth proportional to 20,304.14, 30,424.28 and 15,618.48 is: 23,403.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,304.14 : 30,424.28 = 15,618.48 : x
  2. Step 2: Convert to fraction form
    20,304.14/30,424.28 = 15,618.48/x
  3. Step 3: Cross multiply
    20,304.14x = 30,424.28 × 15,618.48
  4. Step 4: Simplify right side
    20,304.14x = 475,180,930.60
  5. Step 5: Solve for x
    x = 475,180,930.60/20,304.14
  6. Step 6: Final answer
    x = 23,403.16

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1.5x scale

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.