Home / 25,871.48-35,685.79-21,148.28

Finding the Fourth Proportional to 25,871.48, 35,685.79 and 21,148.28

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Solution

The fourth proportional to 25,871.48, 35,685.79 and 21,148.28 is: 29,170.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,871.48 : 35,685.79 = 21,148.28 : x
  2. Step 2: Convert to fraction form
    25,871.48/35,685.79 = 21,148.28/x
  3. Step 3: Cross multiply
    25,871.48x = 35,685.79 × 21,148.28
  4. Step 4: Simplify right side
    25,871.48x = 754,692,847.64
  5. Step 5: Solve for x
    x = 754,692,847.64/25,871.48
  6. Step 6: Final answer
    x = 29,170.85

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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.