Home / 20,063.72-27,687.59-11,111.03

Finding the Fourth Proportional to 20,063.72, 27,687.59 and 11,111.03

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Solution

The fourth proportional to 20,063.72, 27,687.59 and 11,111.03 is: 15,333.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,063.72 : 27,687.59 = 11,111.03 : x
  2. Step 2: Convert to fraction form
    20,063.72/27,687.59 = 11,111.03/x
  3. Step 3: Cross multiply
    20,063.72x = 27,687.59 × 11,111.03
  4. Step 4: Simplify right side
    20,063.72x = 307,637,643.12
  5. Step 5: Solve for x
    x = 307,637,643.12/20,063.72
  6. Step 6: Final answer
    x = 15,333.03

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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.