Home / 26,230.80-39,346.20-13,108.80

Finding the Fourth Proportional to 26,230.80, 39,346.20 and 13,108.80

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Solution

The fourth proportional to 26,230.80, 39,346.20 and 13,108.80 is: 19,663.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,230.80 : 39,346.20 = 13,108.80 : x
  2. Step 2: Convert to fraction form
    26,230.80/39,346.20 = 13,108.80/x
  3. Step 3: Cross multiply
    26,230.80x = 39,346.20 × 13,108.80
  4. Step 4: Simplify right side
    26,230.80x = 515,781,466.56
  5. Step 5: Solve for x
    x = 515,781,466.56/26,230.80
  6. Step 6: Final answer
    x = 19,663.20

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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.