Home / 34,161.56-47,123.22-20,540.14

Finding the Fourth Proportional to 34,161.56, 47,123.22 and 20,540.14

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Solution

The fourth proportional to 34,161.56, 47,123.22 and 20,540.14 is: 28,333.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,161.56 : 47,123.22 = 20,540.14 : x
  2. Step 2: Convert to fraction form
    34,161.56/47,123.22 = 20,540.14/x
  3. Step 3: Cross multiply
    34,161.56x = 47,123.22 × 20,540.14
  4. Step 4: Simplify right side
    34,161.56x = 967,917,690.16
  5. Step 5: Solve for x
    x = 967,917,690.16/34,161.56
  6. Step 6: Final answer
    x = 28,333.53

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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.