Home / 26,231.13-39,318.07-12,913.29

Finding the Fourth Proportional to 26,231.13, 39,318.07 and 12,913.29

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Solution

The fourth proportional to 26,231.13, 39,318.07 and 12,913.29 is: 19,355.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,231.13 : 39,318.07 = 12,913.29 : x
  2. Step 2: Convert to fraction form
    26,231.13/39,318.07 = 12,913.29/x
  3. Step 3: Cross multiply
    26,231.13x = 39,318.07 × 12,913.29
  4. Step 4: Simplify right side
    26,231.13x = 507,725,640.15
  5. Step 5: Solve for x
    x = 507,725,640.15/26,231.13
  6. Step 6: Final answer
    x = 19,355.84

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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.