Home / 26,615.12-39,839.64-19,603.05

Finding the Fourth Proportional to 26,615.12, 39,839.64 and 19,603.05

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Solution

The fourth proportional to 26,615.12, 39,839.64 and 19,603.05 is: 29,343.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,615.12 : 39,839.64 = 19,603.05 : x
  2. Step 2: Convert to fraction form
    26,615.12/39,839.64 = 19,603.05/x
  3. Step 3: Cross multiply
    26,615.12x = 39,839.64 × 19,603.05
  4. Step 4: Simplify right side
    26,615.12x = 780,978,454.90
  5. Step 5: Solve for x
    x = 780,978,454.90/26,615.12
  6. Step 6: Final answer
    x = 29,343.41

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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.