Home / 20,106.24-30,161.28-7,795.20

Finding the Fourth Proportional to 20,106.24, 30,161.28 and 7,795.20

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Solution

The fourth proportional to 20,106.24, 30,161.28 and 7,795.20 is: 11,693.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.24 : 30,161.28 = 7,795.20 : x
  2. Step 2: Convert to fraction form
    20,106.24/30,161.28 = 7,795.20/x
  3. Step 3: Cross multiply
    20,106.24x = 30,161.28 × 7,795.20
  4. Step 4: Simplify right side
    20,106.24x = 235,113,209.86
  5. Step 5: Solve for x
    x = 235,113,209.86/20,106.24
  6. Step 6: Final answer
    x = 11,693.54

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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.