Home / 20,500.32-30,748.95-5,506.20

Finding the Fourth Proportional to 20,500.32, 30,748.95 and 5,506.20

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Solution

The fourth proportional to 20,500.32, 30,748.95 and 5,506.20 is: 8,258.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500.32 : 30,748.95 = 5,506.20 : x
  2. Step 2: Convert to fraction form
    20,500.32/30,748.95 = 5,506.20/x
  3. Step 3: Cross multiply
    20,500.32x = 30,748.95 × 5,506.20
  4. Step 4: Simplify right side
    20,500.32x = 169,309,868.49
  5. Step 5: Solve for x
    x = 169,309,868.49/20,500.32
  6. Step 6: Final answer
    x = 8,258.89

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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.