Home / 15,250.24-21,028.71-13,243.06

Finding the Fourth Proportional to 15,250.24, 21,028.71 and 13,243.06

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Solution

The fourth proportional to 15,250.24, 21,028.71 and 13,243.06 is: 18,260.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,250.24 : 21,028.71 = 13,243.06 : x
  2. Step 2: Convert to fraction form
    15,250.24/21,028.71 = 13,243.06/x
  3. Step 3: Cross multiply
    15,250.24x = 21,028.71 × 13,243.06
  4. Step 4: Simplify right side
    15,250.24x = 278,484,468.25
  5. Step 5: Solve for x
    x = 278,484,468.25/15,250.24
  6. Step 6: Final answer
    x = 18,260.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.