Home / 26,090.12-39,144.78-10,512.20

Finding the Fourth Proportional to 26,090.12, 39,144.78 and 10,512.20

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Solution

The fourth proportional to 26,090.12, 39,144.78 and 10,512.20 is: 15,772.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,090.12 : 39,144.78 = 10,512.20 : x
  2. Step 2: Convert to fraction form
    26,090.12/39,144.78 = 10,512.20/x
  3. Step 3: Cross multiply
    26,090.12x = 39,144.78 × 10,512.20
  4. Step 4: Simplify right side
    26,090.12x = 411,497,756.32
  5. Step 5: Solve for x
    x = 411,497,756.32/26,090.12
  6. Step 6: Final answer
    x = 15,772.17

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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.