Home / 27,889.28-41,821.64-13,102.40

Finding the Fourth Proportional to 27,889.28, 41,821.64 and 13,102.40

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Solution

The fourth proportional to 27,889.28, 41,821.64 and 13,102.40 is: 19,647.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,889.28 : 41,821.64 = 13,102.40 : x
  2. Step 2: Convert to fraction form
    27,889.28/41,821.64 = 13,102.40/x
  3. Step 3: Cross multiply
    27,889.28x = 41,821.64 × 13,102.40
  4. Step 4: Simplify right side
    27,889.28x = 547,963,855.94
  5. Step 5: Solve for x
    x = 547,963,855.94/27,889.28
  6. Step 6: Final answer
    x = 19,647.83

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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.