Home / 25,311.40-37,967.70-7,781.38

Finding the Fourth Proportional to 25,311.40, 37,967.70 and 7,781.38

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Solution

The fourth proportional to 25,311.40, 37,967.70 and 7,781.38 is: 11,672.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,311.40 : 37,967.70 = 7,781.38 : x
  2. Step 2: Convert to fraction form
    25,311.40/37,967.70 = 7,781.38/x
  3. Step 3: Cross multiply
    25,311.40x = 37,967.70 × 7,781.38
  4. Step 4: Simplify right side
    25,311.40x = 295,441,101.43
  5. Step 5: Solve for x
    x = 295,441,101.43/25,311.40
  6. Step 6: Final answer
    x = 11,672.25

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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.