Home / 20,240.07-30,358.92-7,759.59

Finding the Fourth Proportional to 20,240.07, 30,358.92 and 7,759.59

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Solution

The fourth proportional to 20,240.07, 30,358.92 and 7,759.59 is: 11,638.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,240.07 : 30,358.92 = 7,759.59 : x
  2. Step 2: Convert to fraction form
    20,240.07/30,358.92 = 7,759.59/x
  3. Step 3: Cross multiply
    20,240.07x = 30,358.92 × 7,759.59
  4. Step 4: Simplify right side
    20,240.07x = 235,572,772.04
  5. Step 5: Solve for x
    x = 235,572,772.04/20,240.07
  6. Step 6: Final answer
    x = 11,638.93

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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.