Home / 27,818.56-38,389.80-15,243.76

Finding the Fourth Proportional to 27,818.56, 38,389.80 and 15,243.76

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Solution

The fourth proportional to 27,818.56, 38,389.80 and 15,243.76 is: 21,036.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,818.56 : 38,389.80 = 15,243.76 : x
  2. Step 2: Convert to fraction form
    27,818.56/38,389.80 = 15,243.76/x
  3. Step 3: Cross multiply
    27,818.56x = 38,389.80 × 15,243.76
  4. Step 4: Simplify right side
    27,818.56x = 585,204,897.65
  5. Step 5: Solve for x
    x = 585,204,897.65/27,818.56
  6. Step 6: Final answer
    x = 21,036.49

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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.