Home / 27,921.30-41,888.81-13,887.97

Finding the Fourth Proportional to 27,921.30, 41,888.81 and 13,887.97

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Solution

The fourth proportional to 27,921.30, 41,888.81 and 13,887.97 is: 20,835.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.30 : 41,888.81 = 13,887.97 : x
  2. Step 2: Convert to fraction form
    27,921.30/41,888.81 = 13,887.97/x
  3. Step 3: Cross multiply
    27,921.30x = 41,888.81 × 13,887.97
  4. Step 4: Simplify right side
    27,921.30x = 581,750,466.61
  5. Step 5: Solve for x
    x = 581,750,466.61/27,921.30
  6. Step 6: Final answer
    x = 20,835.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.