Home / 30,436.13-42,013.56-27,243.78

Finding the Fourth Proportional to 30,436.13, 42,013.56 and 27,243.78

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Solution

The fourth proportional to 30,436.13, 42,013.56 and 27,243.78 is: 37,606.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,436.13 : 42,013.56 = 27,243.78 : x
  2. Step 2: Convert to fraction form
    30,436.13/42,013.56 = 27,243.78/x
  3. Step 3: Cross multiply
    30,436.13x = 42,013.56 × 27,243.78
  4. Step 4: Simplify right side
    30,436.13x = 1,144,608,185.66
  5. Step 5: Solve for x
    x = 1,144,608,185.66/30,436.13
  6. Step 6: Final answer
    x = 37,606.89

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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.