Home / 20,239.41-30,372.59-7,091.76

Finding the Fourth Proportional to 20,239.41, 30,372.59 and 7,091.76

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Solution

The fourth proportional to 20,239.41, 30,372.59 and 7,091.76 is: 10,642.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.41 : 30,372.59 = 7,091.76 : x
  2. Step 2: Convert to fraction form
    20,239.41/30,372.59 = 7,091.76/x
  3. Step 3: Cross multiply
    20,239.41x = 30,372.59 × 7,091.76
  4. Step 4: Simplify right side
    20,239.41x = 215,394,931.54
  5. Step 5: Solve for x
    x = 215,394,931.54/20,239.41
  6. Step 6: Final answer
    x = 10,642.35

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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.