Home / 34,872.28-48,130.74-20,722.39

Finding the Fourth Proportional to 34,872.28, 48,130.74 and 20,722.39

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Solution

The fourth proportional to 34,872.28, 48,130.74 and 20,722.39 is: 28,601.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,872.28 : 48,130.74 = 20,722.39 : x
  2. Step 2: Convert to fraction form
    34,872.28/48,130.74 = 20,722.39/x
  3. Step 3: Cross multiply
    34,872.28x = 48,130.74 × 20,722.39
  4. Step 4: Simplify right side
    34,872.28x = 997,383,965.27
  5. Step 5: Solve for x
    x = 997,383,965.27/34,872.28
  6. Step 6: Final answer
    x = 28,601.05

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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.