Home / 25,112.24-34,655.18-15,686.28

Finding the Fourth Proportional to 25,112.24, 34,655.18 and 15,686.28

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Solution

The fourth proportional to 25,112.24, 34,655.18 and 15,686.28 is: 21,647.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,112.24 : 34,655.18 = 15,686.28 : x
  2. Step 2: Convert to fraction form
    25,112.24/34,655.18 = 15,686.28/x
  3. Step 3: Cross multiply
    25,112.24x = 34,655.18 × 15,686.28
  4. Step 4: Simplify right side
    25,112.24x = 543,610,856.93
  5. Step 5: Solve for x
    x = 543,610,856.93/25,112.24
  6. Step 6: Final answer
    x = 21,647.25

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