Home / 20,155.18-30,202.01-8,462.06

Finding the Fourth Proportional to 20,155.18, 30,202.01 and 8,462.06

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Solution

The fourth proportional to 20,155.18, 30,202.01 and 8,462.06 is: 12,680.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.18 : 30,202.01 = 8,462.06 : x
  2. Step 2: Convert to fraction form
    20,155.18/30,202.01 = 8,462.06/x
  3. Step 3: Cross multiply
    20,155.18x = 30,202.01 × 8,462.06
  4. Step 4: Simplify right side
    20,155.18x = 255,571,220.74
  5. Step 5: Solve for x
    x = 255,571,220.74/20,155.18
  6. Step 6: Final answer
    x = 12,680.18

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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.