Home / 26,781.99-36,960.36-15,297.91

Finding the Fourth Proportional to 26,781.99, 36,960.36 and 15,297.91

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Solution

The fourth proportional to 26,781.99, 36,960.36 and 15,297.91 is: 21,111.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,781.99 : 36,960.36 = 15,297.91 : x
  2. Step 2: Convert to fraction form
    26,781.99/36,960.36 = 15,297.91/x
  3. Step 3: Cross multiply
    26,781.99x = 36,960.36 × 15,297.91
  4. Step 4: Simplify right side
    26,781.99x = 565,416,260.85
  5. Step 5: Solve for x
    x = 565,416,260.85/26,781.99
  6. Step 6: Final answer
    x = 21,111.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.