Home / 26,102.70-39,159.09-10,521.90

Finding the Fourth Proportional to 26,102.70, 39,159.09 and 10,521.90

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Solution

The fourth proportional to 26,102.70, 39,159.09 and 10,521.90 is: 15,784.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,102.70 : 39,159.09 = 10,521.90 : x
  2. Step 2: Convert to fraction form
    26,102.70/39,159.09 = 10,521.90/x
  3. Step 3: Cross multiply
    26,102.70x = 39,159.09 × 10,521.90
  4. Step 4: Simplify right side
    26,102.70x = 412,028,029.07
  5. Step 5: Solve for x
    x = 412,028,029.07/26,102.70
  6. Step 6: Final answer
    x = 15,784.88

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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.