Home / 26,480.24-39,728.68-10,905.20

Finding the Fourth Proportional to 26,480.24, 39,728.68 and 10,905.20

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Solution

The fourth proportional to 26,480.24, 39,728.68 and 10,905.20 is: 16,361.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,480.24 : 39,728.68 = 10,905.20 : x
  2. Step 2: Convert to fraction form
    26,480.24/39,728.68 = 10,905.20/x
  3. Step 3: Cross multiply
    26,480.24x = 39,728.68 × 10,905.20
  4. Step 4: Simplify right side
    26,480.24x = 433,249,201.14
  5. Step 5: Solve for x
    x = 433,249,201.14/26,480.24
  6. Step 6: Final answer
    x = 16,361.23

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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.