Home / 27,868.36-38,437.21-18,171.41

Finding the Fourth Proportional to 27,868.36, 38,437.21 and 18,171.41

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Solution

The fourth proportional to 27,868.36, 38,437.21 and 18,171.41 is: 25,062.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,868.36 : 38,437.21 = 18,171.41 : x
  2. Step 2: Convert to fraction form
    27,868.36/38,437.21 = 18,171.41/x
  3. Step 3: Cross multiply
    27,868.36x = 38,437.21 × 18,171.41
  4. Step 4: Simplify right side
    27,868.36x = 698,458,162.67
  5. Step 5: Solve for x
    x = 698,458,162.67/27,868.36
  6. Step 6: Final answer
    x = 25,062.77

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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.