Home / 38,618-53,292.48-21,851.04

Finding the Fourth Proportional to 38,618, 53,292.48 and 21,851.04

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Solution

The fourth proportional to 38,618, 53,292.48 and 21,851.04 is: 30,154.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,618 : 53,292.48 = 21,851.04 : x
  2. Step 2: Convert to fraction form
    38,618/53,292.48 = 21,851.04/x
  3. Step 3: Cross multiply
    38,618x = 53,292.48 × 21,851.04
  4. Step 4: Simplify right side
    38,618x = 1,164,496,112.18
  5. Step 5: Solve for x
    x = 1,164,496,112.18/38,618
  6. Step 6: Final answer
    x = 30,154.23

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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.