Home / 38,375.85-52,955.06-21,378.36

Finding the Fourth Proportional to 38,375.85, 52,955.06 and 21,378.36

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Solution

The fourth proportional to 38,375.85, 52,955.06 and 21,378.36 is: 29,500.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,375.85 : 52,955.06 = 21,378.36 : x
  2. Step 2: Convert to fraction form
    38,375.85/52,955.06 = 21,378.36/x
  3. Step 3: Cross multiply
    38,375.85x = 52,955.06 × 21,378.36
  4. Step 4: Simplify right side
    38,375.85x = 1,132,092,229.61
  5. Step 5: Solve for x
    x = 1,132,092,229.61/38,375.85
  6. Step 6: Final answer
    x = 29,500.12

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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.