Home / 25,915.35-38,873.21-11,111.79

Finding the Fourth Proportional to 25,915.35, 38,873.21 and 11,111.79

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Solution

The fourth proportional to 25,915.35, 38,873.21 and 11,111.79 is: 16,667.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,915.35 : 38,873.21 = 11,111.79 : x
  2. Step 2: Convert to fraction form
    25,915.35/38,873.21 = 11,111.79/x
  3. Step 3: Cross multiply
    25,915.35x = 38,873.21 × 11,111.79
  4. Step 4: Simplify right side
    25,915.35x = 431,950,890.59
  5. Step 5: Solve for x
    x = 431,950,890.59/25,915.35
  6. Step 6: Final answer
    x = 16,667.76

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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.