Home / 34,125.70-47,122.56-21,400.30

Finding the Fourth Proportional to 34,125.70, 47,122.56 and 21,400.30

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Solution

The fourth proportional to 34,125.70, 47,122.56 and 21,400.30 is: 29,550.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,125.70 : 47,122.56 = 21,400.30 : x
  2. Step 2: Convert to fraction form
    34,125.70/47,122.56 = 21,400.30/x
  3. Step 3: Cross multiply
    34,125.70x = 47,122.56 × 21,400.30
  4. Step 4: Simplify right side
    34,125.70x = 1,008,436,920.77
  5. Step 5: Solve for x
    x = 1,008,436,920.77/34,125.70
  6. Step 6: Final answer
    x = 29,550.66

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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.