Home / 38,108.45-52,589.54-21,112.71

Finding the Fourth Proportional to 38,108.45, 52,589.54 and 21,112.71

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Solution

The fourth proportional to 38,108.45, 52,589.54 and 21,112.71 is: 29,135.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,108.45 : 52,589.54 = 21,112.71 : x
  2. Step 2: Convert to fraction form
    38,108.45/52,589.54 = 21,112.71/x
  3. Step 3: Cross multiply
    38,108.45x = 52,589.54 × 21,112.71
  4. Step 4: Simplify right side
    38,108.45x = 1,110,307,601.49
  5. Step 5: Solve for x
    x = 1,110,307,601.49/38,108.45
  6. Step 6: Final answer
    x = 29,135.47

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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.