Home / 31,790.49-43,868.84-19,853.12

Finding the Fourth Proportional to 31,790.49, 43,868.84 and 19,853.12

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Solution

The fourth proportional to 31,790.49, 43,868.84 and 19,853.12 is: 27,396.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,790.49 : 43,868.84 = 19,853.12 : x
  2. Step 2: Convert to fraction form
    31,790.49/43,868.84 = 19,853.12/x
  3. Step 3: Cross multiply
    31,790.49x = 43,868.84 × 19,853.12
  4. Step 4: Simplify right side
    31,790.49x = 870,933,026.17
  5. Step 5: Solve for x
    x = 870,933,026.17/31,790.49
  6. Step 6: Final answer
    x = 27,396.02

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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.