Home / 25,905.40-38,858.16-11,104.72

Finding the Fourth Proportional to 25,905.40, 38,858.16 and 11,104.72

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Solution

The fourth proportional to 25,905.40, 38,858.16 and 11,104.72 is: 16,657.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,905.40 : 38,858.16 = 11,104.72 : x
  2. Step 2: Convert to fraction form
    25,905.40/38,858.16 = 11,104.72/x
  3. Step 3: Cross multiply
    25,905.40x = 38,858.16 × 11,104.72
  4. Step 4: Simplify right side
    25,905.40x = 431,508,986.52
  5. Step 5: Solve for x
    x = 431,508,986.52/25,905.40
  6. Step 6: Final answer
    x = 16,657.11

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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.