Home / 26,659.84-39,995.16-7,940.20

Finding the Fourth Proportional to 26,659.84, 39,995.16 and 7,940.20

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Solution

The fourth proportional to 26,659.84, 39,995.16 and 7,940.20 is: 11,911.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,659.84 : 39,995.16 = 7,940.20 : x
  2. Step 2: Convert to fraction form
    26,659.84/39,995.16 = 7,940.20/x
  3. Step 3: Cross multiply
    26,659.84x = 39,995.16 × 7,940.20
  4. Step 4: Simplify right side
    26,659.84x = 317,569,569.43
  5. Step 5: Solve for x
    x = 317,569,569.43/26,659.84
  6. Step 6: Final answer
    x = 11,911.91

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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.