Home / 27,351.90-37,731.15-18,839.38

Finding the Fourth Proportional to 27,351.90, 37,731.15 and 18,839.38

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Solution

The fourth proportional to 27,351.90, 37,731.15 and 18,839.38 is: 25,988.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,351.90 : 37,731.15 = 18,839.38 : x
  2. Step 2: Convert to fraction form
    27,351.90/37,731.15 = 18,839.38/x
  3. Step 3: Cross multiply
    27,351.90x = 37,731.15 × 18,839.38
  4. Step 4: Simplify right side
    27,351.90x = 710,831,378.36
  5. Step 5: Solve for x
    x = 710,831,378.36/27,351.90
  6. Step 6: Final answer
    x = 25,988.37

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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.