Home / 25,571.76-38,324.52-20,643.36

Finding the Fourth Proportional to 25,571.76, 38,324.52 and 20,643.36

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Solution

The fourth proportional to 25,571.76, 38,324.52 and 20,643.36 is: 30,938.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,571.76 : 38,324.52 = 20,643.36 : x
  2. Step 2: Convert to fraction form
    25,571.76/38,324.52 = 20,643.36/x
  3. Step 3: Cross multiply
    25,571.76x = 38,324.52 × 20,643.36
  4. Step 4: Simplify right side
    25,571.76x = 791,146,863.19
  5. Step 5: Solve for x
    x = 791,146,863.19/25,571.76
  6. Step 6: Final answer
    x = 30,938.30

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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.