Home / 25,318.60-37,977.90-11,278.60

Finding the Fourth Proportional to 25,318.60, 37,977.90 and 11,278.60

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Solution

The fourth proportional to 25,318.60, 37,977.90 and 11,278.60 is: 16,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,318.60 : 37,977.90 = 11,278.60 : x
  2. Step 2: Convert to fraction form
    25,318.60/37,977.90 = 11,278.60/x
  3. Step 3: Cross multiply
    25,318.60x = 37,977.90 × 11,278.60
  4. Step 4: Simplify right side
    25,318.60x = 428,337,542.94
  5. Step 5: Solve for x
    x = 428,337,542.94/25,318.60
  6. Step 6: Final answer
    x = 16,917.90

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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.