Home / 26,390.25-36,418.68-19,681.83

Finding the Fourth Proportional to 26,390.25, 36,418.68 and 19,681.83

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Solution

The fourth proportional to 26,390.25, 36,418.68 and 19,681.83 is: 27,161.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,390.25 : 36,418.68 = 19,681.83 : x
  2. Step 2: Convert to fraction form
    26,390.25/36,418.68 = 19,681.83/x
  3. Step 3: Cross multiply
    26,390.25x = 36,418.68 × 19,681.83
  4. Step 4: Simplify right side
    26,390.25x = 716,786,268.58
  5. Step 5: Solve for x
    x = 716,786,268.58/26,390.25
  6. Step 6: Final answer
    x = 27,161.03

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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.