Home / 20,239.50-30,359.19-15,567.84

Finding the Fourth Proportional to 20,239.50, 30,359.19 and 15,567.84

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Solution

The fourth proportional to 20,239.50, 30,359.19 and 15,567.84 is: 23,351.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.50 : 30,359.19 = 15,567.84 : x
  2. Step 2: Convert to fraction form
    20,239.50/30,359.19 = 15,567.84/x
  3. Step 3: Cross multiply
    20,239.50x = 30,359.19 × 15,567.84
  4. Step 4: Simplify right side
    20,239.50x = 472,627,012.45
  5. Step 5: Solve for x
    x = 472,627,012.45/20,239.50
  6. Step 6: Final answer
    x = 23,351.71

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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.