Home / 20,371.96-30,548.28-7,897.80

Finding the Fourth Proportional to 20,371.96, 30,548.28 and 7,897.80

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Solution

The fourth proportional to 20,371.96, 30,548.28 and 7,897.80 is: 11,842.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,371.96 : 30,548.28 = 7,897.80 : x
  2. Step 2: Convert to fraction form
    20,371.96/30,548.28 = 7,897.80/x
  3. Step 3: Cross multiply
    20,371.96x = 30,548.28 × 7,897.80
  4. Step 4: Simplify right side
    20,371.96x = 241,264,205.78
  5. Step 5: Solve for x
    x = 241,264,205.78/20,371.96
  6. Step 6: Final answer
    x = 11,842.96

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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.