Home / 26,620.43-39,936.71-9,090

Finding the Fourth Proportional to 26,620.43, 39,936.71 and 9,090

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Solution

The fourth proportional to 26,620.43, 39,936.71 and 9,090 is: 13,637.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,620.43 : 39,936.71 = 9,090 : x
  2. Step 2: Convert to fraction form
    26,620.43/39,936.71 = 9,090/x
  3. Step 3: Cross multiply
    26,620.43x = 39,936.71 × 9,090
  4. Step 4: Simplify right side
    26,620.43x = 363,024,716.63
  5. Step 5: Solve for x
    x = 363,024,716.63/26,620.43
  6. Step 6: Final answer
    x = 13,637.07

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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.