Home / 25,231.77-34,819.34-15,805.53

Finding the Fourth Proportional to 25,231.77, 34,819.34 and 15,805.53

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Solution

The fourth proportional to 25,231.77, 34,819.34 and 15,805.53 is: 21,811.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,231.77 : 34,819.34 = 15,805.53 : x
  2. Step 2: Convert to fraction form
    25,231.77/34,819.34 = 15,805.53/x
  3. Step 3: Cross multiply
    25,231.77x = 34,819.34 × 15,805.53
  4. Step 4: Simplify right side
    25,231.77x = 550,338,043.92
  5. Step 5: Solve for x
    x = 550,338,043.92/25,231.77
  6. Step 6: Final answer
    x = 21,811.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.