Home / 20,063.30-27,687.56-11,111.04

Finding the Fourth Proportional to 20,063.30, 27,687.56 and 11,111.04

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Solution

The fourth proportional to 20,063.30, 27,687.56 and 11,111.04 is: 15,333.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,063.30 : 27,687.56 = 11,111.04 : x
  2. Step 2: Convert to fraction form
    20,063.30/27,687.56 = 11,111.04/x
  3. Step 3: Cross multiply
    20,063.30x = 27,687.56 × 11,111.04
  4. Step 4: Simplify right side
    20,063.30x = 307,637,531.11
  5. Step 5: Solve for x
    x = 307,637,531.11/20,063.30
  6. Step 6: Final answer
    x = 15,333.35

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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.