Home / 25,474.21-38,218.91-12,157.20

Finding the Fourth Proportional to 25,474.21, 38,218.91 and 12,157.20

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Solution

The fourth proportional to 25,474.21, 38,218.91 and 12,157.20 is: 18,239.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,474.21 : 38,218.91 = 12,157.20 : x
  2. Step 2: Convert to fraction form
    25,474.21/38,218.91 = 12,157.20/x
  3. Step 3: Cross multiply
    25,474.21x = 38,218.91 × 12,157.20
  4. Step 4: Simplify right side
    25,474.21x = 464,634,871.87
  5. Step 5: Solve for x
    x = 464,634,871.87/25,474.21
  6. Step 6: Final answer
    x = 18,239.42

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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.