Home / 20,035.32-27,646.80-11,081.58

Finding the Fourth Proportional to 20,035.32, 27,646.80 and 11,081.58

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Solution

The fourth proportional to 20,035.32, 27,646.80 and 11,081.58 is: 15,291.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,035.32 : 27,646.80 = 11,081.58 : x
  2. Step 2: Convert to fraction form
    20,035.32/27,646.80 = 11,081.58/x
  3. Step 3: Cross multiply
    20,035.32x = 27,646.80 × 11,081.58
  4. Step 4: Simplify right side
    20,035.32x = 306,370,225.94
  5. Step 5: Solve for x
    x = 306,370,225.94/20,035.32
  6. Step 6: Final answer
    x = 15,291.51

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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.