Home / 19,972.80-27,562-11,020.31

Finding the Fourth Proportional to 19,972.80, 27,562 and 11,020.31

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Solution

The fourth proportional to 19,972.80, 27,562 and 11,020.31 is: 15,207.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.80 : 27,562 = 11,020.31 : x
  2. Step 2: Convert to fraction form
    19,972.80/27,562 = 11,020.31/x
  3. Step 3: Cross multiply
    19,972.80x = 27,562 × 11,020.31
  4. Step 4: Simplify right side
    19,972.80x = 303,741,784.22
  5. Step 5: Solve for x
    x = 303,741,784.22/19,972.80
  6. Step 6: Final answer
    x = 15,207.77

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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.