Home / 20,484.58-30,736.43-10,618.47

Finding the Fourth Proportional to 20,484.58, 30,736.43 and 10,618.47

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Solution

The fourth proportional to 20,484.58, 30,736.43 and 10,618.47 is: 15,932.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.58 : 30,736.43 = 10,618.47 : x
  2. Step 2: Convert to fraction form
    20,484.58/30,736.43 = 10,618.47/x
  3. Step 3: Cross multiply
    20,484.58x = 30,736.43 × 10,618.47
  4. Step 4: Simplify right side
    20,484.58x = 326,373,859.86
  5. Step 5: Solve for x
    x = 326,373,859.86/20,484.58
  6. Step 6: Final answer
    x = 15,932.66

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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.