Home / 26,102.60-39,089.10-20,918.60

Finding the Fourth Proportional to 26,102.60, 39,089.10 and 20,918.60

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Solution

The fourth proportional to 26,102.60, 39,089.10 and 20,918.60 is: 31,325.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,102.60 : 39,089.10 = 20,918.60 : x
  2. Step 2: Convert to fraction form
    26,102.60/39,089.10 = 20,918.60/x
  3. Step 3: Cross multiply
    26,102.60x = 39,089.10 × 20,918.60
  4. Step 4: Simplify right side
    26,102.60x = 817,689,247.26
  5. Step 5: Solve for x
    x = 817,689,247.26/26,102.60
  6. Step 6: Final answer
    x = 31,325.97

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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.