Home / 10,221.58-15,330.55-2,824.32

Finding the Fourth Proportional to 10,221.58, 15,330.55 and 2,824.32

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Solution

The fourth proportional to 10,221.58, 15,330.55 and 2,824.32 is: 4,235.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.58 : 15,330.55 = 2,824.32 : x
  2. Step 2: Convert to fraction form
    10,221.58/15,330.55 = 2,824.32/x
  3. Step 3: Cross multiply
    10,221.58x = 15,330.55 × 2,824.32
  4. Step 4: Simplify right side
    10,221.58x = 43,298,378.98
  5. Step 5: Solve for x
    x = 43,298,378.98/10,221.58
  6. Step 6: Final answer
    x = 4,235.98

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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.