Home / 20,055.77-27,677.60-11,557.22

Finding the Fourth Proportional to 20,055.77, 27,677.60 and 11,557.22

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Solution

The fourth proportional to 20,055.77, 27,677.60 and 11,557.22 is: 15,949.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,055.77 : 27,677.60 = 11,557.22 : x
  2. Step 2: Convert to fraction form
    20,055.77/27,677.60 = 11,557.22/x
  3. Step 3: Cross multiply
    20,055.77x = 27,677.60 × 11,557.22
  4. Step 4: Simplify right side
    20,055.77x = 319,875,959.44
  5. Step 5: Solve for x
    x = 319,875,959.44/20,055.77
  6. Step 6: Final answer
    x = 15,949.32

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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.