Home / 25,749.76-35,533.44-15,811.84

Finding the Fourth Proportional to 25,749.76, 35,533.44 and 15,811.84

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Solution

The fourth proportional to 25,749.76, 35,533.44 and 15,811.84 is: 21,819.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,749.76 : 35,533.44 = 15,811.84 : x
  2. Step 2: Convert to fraction form
    25,749.76/35,533.44 = 15,811.84/x
  3. Step 3: Cross multiply
    25,749.76x = 35,533.44 × 15,811.84
  4. Step 4: Simplify right side
    25,749.76x = 561,849,067.93
  5. Step 5: Solve for x
    x = 561,849,067.93/25,749.76
  6. Step 6: Final answer
    x = 21,819.58

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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.