Home / 34,872.54-48,120.50-20,722.64

Finding the Fourth Proportional to 34,872.54, 48,120.50 and 20,722.64

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Solution

The fourth proportional to 34,872.54, 48,120.50 and 20,722.64 is: 28,595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,872.54 : 48,120.50 = 20,722.64 : x
  2. Step 2: Convert to fraction form
    34,872.54/48,120.50 = 20,722.64/x
  3. Step 3: Cross multiply
    34,872.54x = 48,120.50 × 20,722.64
  4. Step 4: Simplify right side
    34,872.54x = 997,183,798.12
  5. Step 5: Solve for x
    x = 997,183,798.12/34,872.54
  6. Step 6: Final answer
    x = 28,595.10

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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.