Home / 27,900.09-38,502.39-15,324.84

Finding the Fourth Proportional to 27,900.09, 38,502.39 and 15,324.84

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Solution

The fourth proportional to 27,900.09, 38,502.39 and 15,324.84 is: 21,148.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,900.09 : 38,502.39 = 15,324.84 : x
  2. Step 2: Convert to fraction form
    27,900.09/38,502.39 = 15,324.84/x
  3. Step 3: Cross multiply
    27,900.09x = 38,502.39 × 15,324.84
  4. Step 4: Simplify right side
    27,900.09x = 590,042,966.37
  5. Step 5: Solve for x
    x = 590,042,966.37/27,900.09
  6. Step 6: Final answer
    x = 21,148.43

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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.