Home / 25,848.32-38,791.91-20,716.16

Finding the Fourth Proportional to 25,848.32, 38,791.91 and 20,716.16

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Solution

The fourth proportional to 25,848.32, 38,791.91 and 20,716.16 is: 31,089.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,848.32 : 38,791.91 = 20,716.16 : x
  2. Step 2: Convert to fraction form
    25,848.32/38,791.91 = 20,716.16/x
  3. Step 3: Cross multiply
    25,848.32x = 38,791.91 × 20,716.16
  4. Step 4: Simplify right side
    25,848.32x = 803,619,272.10
  5. Step 5: Solve for x
    x = 803,619,272.10/25,848.32
  6. Step 6: Final answer
    x = 31,089.81

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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.