Home / 30,245.32-41,715.84-21,295.36

Finding the Fourth Proportional to 30,245.32, 41,715.84 and 21,295.36

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Solution

The fourth proportional to 30,245.32, 41,715.84 and 21,295.36 is: 29,371.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,245.32 : 41,715.84 = 21,295.36 : x
  2. Step 2: Convert to fraction form
    30,245.32/41,715.84 = 21,295.36/x
  3. Step 3: Cross multiply
    30,245.32x = 41,715.84 × 21,295.36
  4. Step 4: Simplify right side
    30,245.32x = 888,353,830.50
  5. Step 5: Solve for x
    x = 888,353,830.50/30,245.32
  6. Step 6: Final answer
    x = 29,371.61

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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.