Home / 23,121.28-34,751.04-20,356.48

Finding the Fourth Proportional to 23,121.28, 34,751.04 and 20,356.48

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Solution

The fourth proportional to 23,121.28, 34,751.04 and 20,356.48 is: 30,595.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,121.28 : 34,751.04 = 20,356.48 : x
  2. Step 2: Convert to fraction form
    23,121.28/34,751.04 = 20,356.48/x
  3. Step 3: Cross multiply
    23,121.28x = 34,751.04 × 20,356.48
  4. Step 4: Simplify right side
    23,121.28x = 707,408,850.74
  5. Step 5: Solve for x
    x = 707,408,850.74/23,121.28
  6. Step 6: Final answer
    x = 30,595.57

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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.