Home / 20,155.50-30,233.44-7,675.64

Finding the Fourth Proportional to 20,155.50, 30,233.44 and 7,675.64

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Solution

The fourth proportional to 20,155.50, 30,233.44 and 7,675.64 is: 11,513.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.50 : 30,233.44 = 7,675.64 : x
  2. Step 2: Convert to fraction form
    20,155.50/30,233.44 = 7,675.64/x
  3. Step 3: Cross multiply
    20,155.50x = 30,233.44 × 7,675.64
  4. Step 4: Simplify right side
    20,155.50x = 232,061,001.40
  5. Step 5: Solve for x
    x = 232,061,001.40/20,155.50
  6. Step 6: Final answer
    x = 11,513.53

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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.