Home / 26,107.67-36,015.90-15,489.79

Finding the Fourth Proportional to 26,107.67, 36,015.90 and 15,489.79

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Solution

The fourth proportional to 26,107.67, 36,015.90 and 15,489.79 is: 21,368.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,107.67 : 36,015.90 = 15,489.79 : x
  2. Step 2: Convert to fraction form
    26,107.67/36,015.90 = 15,489.79/x
  3. Step 3: Cross multiply
    26,107.67x = 36,015.90 × 15,489.79
  4. Step 4: Simplify right side
    26,107.67x = 557,878,727.66
  5. Step 5: Solve for x
    x = 557,878,727.66/26,107.67
  6. Step 6: Final answer
    x = 21,368.38

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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.