Home / 20,089.93-27,721.54-11,137.35

Finding the Fourth Proportional to 20,089.93, 27,721.54 and 11,137.35

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Solution

The fourth proportional to 20,089.93, 27,721.54 and 11,137.35 is: 15,368.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089.93 : 27,721.54 = 11,137.35 : x
  2. Step 2: Convert to fraction form
    20,089.93/27,721.54 = 11,137.35/x
  3. Step 3: Cross multiply
    20,089.93x = 27,721.54 × 11,137.35
  4. Step 4: Simplify right side
    20,089.93x = 308,744,493.52
  5. Step 5: Solve for x
    x = 308,744,493.52/20,089.93
  6. Step 6: Final answer
    x = 15,368.12

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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.