Home / 40,059.15-55,282.59-21,911.58

Finding the Fourth Proportional to 40,059.15, 55,282.59 and 21,911.58

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Solution

The fourth proportional to 40,059.15, 55,282.59 and 21,911.58 is: 30,238.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,059.15 : 55,282.59 = 21,911.58 : x
  2. Step 2: Convert to fraction form
    40,059.15/55,282.59 = 21,911.58/x
  3. Step 3: Cross multiply
    40,059.15x = 55,282.59 × 21,911.58
  4. Step 4: Simplify right side
    40,059.15x = 1,211,329,059.54
  5. Step 5: Solve for x
    x = 1,211,329,059.54/40,059.15
  6. Step 6: Final answer
    x = 30,238.51

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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.