Home / 26,418.20-36,391.02-20,119.64

Finding the Fourth Proportional to 26,418.20, 36,391.02 and 20,119.64

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Solution

The fourth proportional to 26,418.20, 36,391.02 and 20,119.64 is: 27,714.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,418.20 : 36,391.02 = 20,119.64 : x
  2. Step 2: Convert to fraction form
    26,418.20/36,391.02 = 20,119.64/x
  3. Step 3: Cross multiply
    26,418.20x = 36,391.02 × 20,119.64
  4. Step 4: Simplify right side
    26,418.20x = 732,174,221.63
  5. Step 5: Solve for x
    x = 732,174,221.63/26,418.20
  6. Step 6: Final answer
    x = 27,714.77

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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.