Home / 26,976.48-40,477.56-12,189.92

Finding the Fourth Proportional to 26,976.48, 40,477.56 and 12,189.92

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Solution

The fourth proportional to 26,976.48, 40,477.56 and 12,189.92 is: 18,290.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,976.48 : 40,477.56 = 12,189.92 : x
  2. Step 2: Convert to fraction form
    26,976.48/40,477.56 = 12,189.92/x
  3. Step 3: Cross multiply
    26,976.48x = 40,477.56 × 12,189.92
  4. Step 4: Simplify right side
    26,976.48x = 493,418,218.20
  5. Step 5: Solve for x
    x = 493,418,218.20/26,976.48
  6. Step 6: Final answer
    x = 18,290.68

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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.