Home / 25,464.30-38,197.20-12,138.69

Finding the Fourth Proportional to 25,464.30, 38,197.20 and 12,138.69

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Solution

The fourth proportional to 25,464.30, 38,197.20 and 12,138.69 is: 18,208.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,464.30 : 38,197.20 = 12,138.69 : x
  2. Step 2: Convert to fraction form
    25,464.30/38,197.20 = 12,138.69/x
  3. Step 3: Cross multiply
    25,464.30x = 38,197.20 × 12,138.69
  4. Step 4: Simplify right side
    25,464.30x = 463,663,969.67
  5. Step 5: Solve for x
    x = 463,663,969.67/25,464.30
  6. Step 6: Final answer
    x = 18,208.39

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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.