Home / 20,088.15-27,721.17-11,590.29

Finding the Fourth Proportional to 20,088.15, 27,721.17 and 11,590.29

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Solution

The fourth proportional to 20,088.15, 27,721.17 and 11,590.29 is: 15,994.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.15 : 27,721.17 = 11,590.29 : x
  2. Step 2: Convert to fraction form
    20,088.15/27,721.17 = 11,590.29/x
  3. Step 3: Cross multiply
    20,088.15x = 27,721.17 × 11,590.29
  4. Step 4: Simplify right side
    20,088.15x = 321,296,399.44
  5. Step 5: Solve for x
    x = 321,296,399.44/20,088.15
  6. Step 6: Final answer
    x = 15,994.32

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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.