Home / 25,704.28-38,556.42-10,121.50

Finding the Fourth Proportional to 25,704.28, 38,556.42 and 10,121.50

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Solution

The fourth proportional to 25,704.28, 38,556.42 and 10,121.50 is: 15,182.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,704.28 : 38,556.42 = 10,121.50 : x
  2. Step 2: Convert to fraction form
    25,704.28/38,556.42 = 10,121.50/x
  3. Step 3: Cross multiply
    25,704.28x = 38,556.42 × 10,121.50
  4. Step 4: Simplify right side
    25,704.28x = 390,248,805.03
  5. Step 5: Solve for x
    x = 390,248,805.03/25,704.28
  6. Step 6: Final answer
    x = 15,182.25

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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.