Home / 27,818.52-38,389.56-15,243.28

Finding the Fourth Proportional to 27,818.52, 38,389.56 and 15,243.28

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Solution

The fourth proportional to 27,818.52, 38,389.56 and 15,243.28 is: 21,035.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,818.52 : 38,389.56 = 15,243.28 : x
  2. Step 2: Convert to fraction form
    27,818.52/38,389.56 = 15,243.28/x
  3. Step 3: Cross multiply
    27,818.52x = 38,389.56 × 15,243.28
  4. Step 4: Simplify right side
    27,818.52x = 585,182,812.16
  5. Step 5: Solve for x
    x = 585,182,812.16/27,818.52
  6. Step 6: Final answer
    x = 21,035.73

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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.