Home / 25,715.70-38,566.80-10,917

Finding the Fourth Proportional to 25,715.70, 38,566.80 and 10,917

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Solution

The fourth proportional to 25,715.70, 38,566.80 and 10,917 is: 16,372.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,715.70 : 38,566.80 = 10,917 : x
  2. Step 2: Convert to fraction form
    25,715.70/38,566.80 = 10,917/x
  3. Step 3: Cross multiply
    25,715.70x = 38,566.80 × 10,917
  4. Step 4: Simplify right side
    25,715.70x = 421,033,755.60
  5. Step 5: Solve for x
    x = 421,033,755.60/25,715.70
  6. Step 6: Final answer
    x = 16,372.63

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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.