Home / 27,818.48-38,389.56-15,243.44

Finding the Fourth Proportional to 27,818.48, 38,389.56 and 15,243.44

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Solution

The fourth proportional to 27,818.48, 38,389.56 and 15,243.44 is: 21,035.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,818.48 : 38,389.56 = 15,243.44 : x
  2. Step 2: Convert to fraction form
    27,818.48/38,389.56 = 15,243.44/x
  3. Step 3: Cross multiply
    27,818.48x = 38,389.56 × 15,243.44
  4. Step 4: Simplify right side
    27,818.48x = 585,188,954.49
  5. Step 5: Solve for x
    x = 585,188,954.49/27,818.48
  6. Step 6: Final answer
    x = 21,035.98

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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.