Home / 20,659.32-30,950.64-15,115.14

Finding the Fourth Proportional to 20,659.32, 30,950.64 and 15,115.14

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Solution

The fourth proportional to 20,659.32, 30,950.64 and 15,115.14 is: 22,644.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,659.32 : 30,950.64 = 15,115.14 : x
  2. Step 2: Convert to fraction form
    20,659.32/30,950.64 = 15,115.14/x
  3. Step 3: Cross multiply
    20,659.32x = 30,950.64 × 15,115.14
  4. Step 4: Simplify right side
    20,659.32x = 467,823,256.69
  5. Step 5: Solve for x
    x = 467,823,256.69/20,659.32
  6. Step 6: Final answer
    x = 22,644.66

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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.