Home / 38,117.33-52,601.14-21,121.43

Finding the Fourth Proportional to 38,117.33, 52,601.14 and 21,121.43

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Solution

The fourth proportional to 38,117.33, 52,601.14 and 21,121.43 is: 29,147.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,117.33 : 52,601.14 = 21,121.43 : x
  2. Step 2: Convert to fraction form
    38,117.33/52,601.14 = 21,121.43/x
  3. Step 3: Cross multiply
    38,117.33x = 52,601.14 × 21,121.43
  4. Step 4: Simplify right side
    38,117.33x = 1,111,010,980.62
  5. Step 5: Solve for x
    x = 1,111,010,980.62/38,117.33
  6. Step 6: Final answer
    x = 29,147.13

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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.