Home / 26,439.28-39,661.31-11,644.70

Finding the Fourth Proportional to 26,439.28, 39,661.31 and 11,644.70

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Solution

The fourth proportional to 26,439.28, 39,661.31 and 11,644.70 is: 17,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,439.28 : 39,661.31 = 11,644.70 : x
  2. Step 2: Convert to fraction form
    26,439.28/39,661.31 = 11,644.70/x
  3. Step 3: Cross multiply
    26,439.28x = 39,661.31 × 11,644.70
  4. Step 4: Simplify right side
    26,439.28x = 461,843,887.36
  5. Step 5: Solve for x
    x = 461,843,887.36/26,439.28
  6. Step 6: Final answer
    x = 17,468.10

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1.5x scale

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.