Home / 26,443.79-39,669.39-7,725.20

Finding the Fourth Proportional to 26,443.79, 39,669.39 and 7,725.20

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Solution

The fourth proportional to 26,443.79, 39,669.39 and 7,725.20 is: 11,588.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,443.79 : 39,669.39 = 7,725.20 : x
  2. Step 2: Convert to fraction form
    26,443.79/39,669.39 = 7,725.20/x
  3. Step 3: Cross multiply
    26,443.79x = 39,669.39 × 7,725.20
  4. Step 4: Simplify right side
    26,443.79x = 306,453,773.28
  5. Step 5: Solve for x
    x = 306,453,773.28/26,443.79
  6. Step 6: Final answer
    x = 11,588.88

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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.