Home / 34,156.10-47,122.26-20,722.52

Finding the Fourth Proportional to 34,156.10, 47,122.26 and 20,722.52

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Solution

The fourth proportional to 34,156.10, 47,122.26 and 20,722.52 is: 28,589.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,156.10 : 47,122.26 = 20,722.52 : x
  2. Step 2: Convert to fraction form
    34,156.10/47,122.26 = 20,722.52/x
  3. Step 3: Cross multiply
    34,156.10x = 47,122.26 × 20,722.52
  4. Step 4: Simplify right side
    34,156.10x = 976,491,975.30
  5. Step 5: Solve for x
    x = 976,491,975.30/34,156.10
  6. Step 6: Final answer
    x = 28,589.09

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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.