Home / 25,388.62-35,072.79-20,277.43

Finding the Fourth Proportional to 25,388.62, 35,072.79 and 20,277.43

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Solution

The fourth proportional to 25,388.62, 35,072.79 and 20,277.43 is: 28,012.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,388.62 : 35,072.79 = 20,277.43 : x
  2. Step 2: Convert to fraction form
    25,388.62/35,072.79 = 20,277.43/x
  3. Step 3: Cross multiply
    25,388.62x = 35,072.79 × 20,277.43
  4. Step 4: Simplify right side
    25,388.62x = 711,185,979.41
  5. Step 5: Solve for x
    x = 711,185,979.41/25,388.62
  6. Step 6: Final answer
    x = 28,012.00

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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.