Home / 20,103.93-30,157.20-6,954.57

Finding the Fourth Proportional to 20,103.93, 30,157.20 and 6,954.57

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Solution

The fourth proportional to 20,103.93, 30,157.20 and 6,954.57 is: 10,432.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,103.93 : 30,157.20 = 6,954.57 : x
  2. Step 2: Convert to fraction form
    20,103.93/30,157.20 = 6,954.57/x
  3. Step 3: Cross multiply
    20,103.93x = 30,157.20 × 6,954.57
  4. Step 4: Simplify right side
    20,103.93x = 209,730,358.40
  5. Step 5: Solve for x
    x = 209,730,358.40/20,103.93
  6. Step 6: Final answer
    x = 10,432.31

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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.