Home / 30,661.40-45,992.10-25,704.20

Finding the Fourth Proportional to 30,661.40, 45,992.10 and 25,704.20

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Solution

The fourth proportional to 30,661.40, 45,992.10 and 25,704.20 is: 38,556.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,661.40 : 45,992.10 = 25,704.20 : x
  2. Step 2: Convert to fraction form
    30,661.40/45,992.10 = 25,704.20/x
  3. Step 3: Cross multiply
    30,661.40x = 45,992.10 × 25,704.20
  4. Step 4: Simplify right side
    30,661.40x = 1,182,190,136.82
  5. Step 5: Solve for x
    x = 1,182,190,136.82/30,661.40
  6. Step 6: Final answer
    x = 38,556.30

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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.