Home / 38,642.13-57,963.20-21,102.39

Finding the Fourth Proportional to 38,642.13, 57,963.20 and 21,102.39

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Solution

The fourth proportional to 38,642.13, 57,963.20 and 21,102.39 is: 31,653.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,642.13 : 57,963.20 = 21,102.39 : x
  2. Step 2: Convert to fraction form
    38,642.13/57,963.20 = 21,102.39/x
  3. Step 3: Cross multiply
    38,642.13x = 57,963.20 × 21,102.39
  4. Step 4: Simplify right side
    38,642.13x = 1,223,161,946.54
  5. Step 5: Solve for x
    x = 1,223,161,946.54/38,642.13
  6. Step 6: Final answer
    x = 31,653.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.