Home / 29,219.52-40,322.94-15,790.76

Finding the Fourth Proportional to 29,219.52, 40,322.94 and 15,790.76

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Solution

The fourth proportional to 29,219.52, 40,322.94 and 15,790.76 is: 21,791.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,219.52 : 40,322.94 = 15,790.76 : x
  2. Step 2: Convert to fraction form
    29,219.52/40,322.94 = 15,790.76/x
  3. Step 3: Cross multiply
    29,219.52x = 40,322.94 × 15,790.76
  4. Step 4: Simplify right side
    29,219.52x = 636,729,868.03
  5. Step 5: Solve for x
    x = 636,729,868.03/29,219.52
  6. Step 6: Final answer
    x = 21,791.25

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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.