Home / 27,858.18-38,444.06-15,111.33

Finding the Fourth Proportional to 27,858.18, 38,444.06 and 15,111.33

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Solution

The fourth proportional to 27,858.18, 38,444.06 and 15,111.33 is: 20,853.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,858.18 : 38,444.06 = 15,111.33 : x
  2. Step 2: Convert to fraction form
    27,858.18/38,444.06 = 15,111.33/x
  3. Step 3: Cross multiply
    27,858.18x = 38,444.06 × 15,111.33
  4. Step 4: Simplify right side
    27,858.18x = 580,940,877.20
  5. Step 5: Solve for x
    x = 580,940,877.20/27,858.18
  6. Step 6: Final answer
    x = 20,853.51

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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.