Home / 38,105.79-52,586.10-21,338.79

Finding the Fourth Proportional to 38,105.79, 52,586.10 and 21,338.79

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Solution

The fourth proportional to 38,105.79, 52,586.10 and 21,338.79 is: 29,447.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,105.79 : 52,586.10 = 21,338.79 : x
  2. Step 2: Convert to fraction form
    38,105.79/52,586.10 = 21,338.79/x
  3. Step 3: Cross multiply
    38,105.79x = 52,586.10 × 21,338.79
  4. Step 4: Simplify right side
    38,105.79x = 1,122,123,744.82
  5. Step 5: Solve for x
    x = 1,122,123,744.82/38,105.79
  6. Step 6: Final answer
    x = 29,447.59

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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.