Home / 25,906.40-38,861.74-10,917.86

Finding the Fourth Proportional to 25,906.40, 38,861.74 and 10,917.86

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Solution

The fourth proportional to 25,906.40, 38,861.74 and 10,917.86 is: 16,377.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,906.40 : 38,861.74 = 10,917.86 : x
  2. Step 2: Convert to fraction form
    25,906.40/38,861.74 = 10,917.86/x
  3. Step 3: Cross multiply
    25,906.40x = 38,861.74 × 10,917.86
  4. Step 4: Simplify right side
    25,906.40x = 424,287,036.68
  5. Step 5: Solve for x
    x = 424,287,036.68/25,906.40
  6. Step 6: Final answer
    x = 16,377.69

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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.