Home / 34,158.70-47,142.63-20,023.42

Finding the Fourth Proportional to 34,158.70, 47,142.63 and 20,023.42

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Solution

The fourth proportional to 34,158.70, 47,142.63 and 20,023.42 is: 27,634.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,158.70 : 47,142.63 = 20,023.42 : x
  2. Step 2: Convert to fraction form
    34,158.70/47,142.63 = 20,023.42/x
  3. Step 3: Cross multiply
    34,158.70x = 47,142.63 × 20,023.42
  4. Step 4: Simplify right side
    34,158.70x = 943,956,680.39
  5. Step 5: Solve for x
    x = 943,956,680.39/34,158.70
  6. Step 6: Final answer
    x = 27,634.44

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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.