Home / 38,348.70-52,919.91-21,578.46

Finding the Fourth Proportional to 38,348.70, 52,919.91 and 21,578.46

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Solution

The fourth proportional to 38,348.70, 52,919.91 and 21,578.46 is: 29,777.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,348.70 : 52,919.91 = 21,578.46 : x
  2. Step 2: Convert to fraction form
    38,348.70/52,919.91 = 21,578.46/x
  3. Step 3: Cross multiply
    38,348.70x = 52,919.91 × 21,578.46
  4. Step 4: Simplify right side
    38,348.70x = 1,141,930,161.14
  5. Step 5: Solve for x
    x = 1,141,930,161.14/38,348.70
  6. Step 6: Final answer
    x = 29,777.55

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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.