Home / 26,629.20-39,943.80-10,213.20

Finding the Fourth Proportional to 26,629.20, 39,943.80 and 10,213.20

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Solution

The fourth proportional to 26,629.20, 39,943.80 and 10,213.20 is: 15,319.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,629.20 : 39,943.80 = 10,213.20 : x
  2. Step 2: Convert to fraction form
    26,629.20/39,943.80 = 10,213.20/x
  3. Step 3: Cross multiply
    26,629.20x = 39,943.80 × 10,213.20
  4. Step 4: Simplify right side
    26,629.20x = 407,954,018.16
  5. Step 5: Solve for x
    x = 407,954,018.16/26,629.20
  6. Step 6: Final answer
    x = 15,319.80

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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.