Home / 20,506.50-30,767.04-10,125.54

Finding the Fourth Proportional to 20,506.50, 30,767.04 and 10,125.54

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Solution

The fourth proportional to 20,506.50, 30,767.04 and 10,125.54 is: 15,191.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506.50 : 30,767.04 = 10,125.54 : x
  2. Step 2: Convert to fraction form
    20,506.50/30,767.04 = 10,125.54/x
  3. Step 3: Cross multiply
    20,506.50x = 30,767.04 × 10,125.54
  4. Step 4: Simplify right side
    20,506.50x = 311,532,894.20
  5. Step 5: Solve for x
    x = 311,532,894.20/20,506.50
  6. Step 6: Final answer
    x = 15,191.91

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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.