Home / 29,811.20-41,179.28-20,888.24

Finding the Fourth Proportional to 29,811.20, 41,179.28 and 20,888.24

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Solution

The fourth proportional to 29,811.20, 41,179.28 and 20,888.24 is: 28,853.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,811.20 : 41,179.28 = 20,888.24 : x
  2. Step 2: Convert to fraction form
    29,811.20/41,179.28 = 20,888.24/x
  3. Step 3: Cross multiply
    29,811.20x = 41,179.28 × 20,888.24
  4. Step 4: Simplify right side
    29,811.20x = 860,162,373.33
  5. Step 5: Solve for x
    x = 860,162,373.33/29,811.20
  6. Step 6: Final answer
    x = 28,853.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.