Home / 26,135.59-36,042.53-20,157.79

Finding the Fourth Proportional to 26,135.59, 36,042.53 and 20,157.79

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Solution

The fourth proportional to 26,135.59, 36,042.53 and 20,157.79 is: 27,798.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,135.59 : 36,042.53 = 20,157.79 : x
  2. Step 2: Convert to fraction form
    26,135.59/36,042.53 = 20,157.79/x
  3. Step 3: Cross multiply
    26,135.59x = 36,042.53 × 20,157.79
  4. Step 4: Simplify right side
    26,135.59x = 726,537,650.02
  5. Step 5: Solve for x
    x = 726,537,650.02/26,135.59
  6. Step 6: Final answer
    x = 27,798.79

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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.