Home / 20,054.81-27,675.57-11,101.78

Finding the Fourth Proportional to 20,054.81, 27,675.57 and 11,101.78

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Solution

The fourth proportional to 20,054.81, 27,675.57 and 11,101.78 is: 15,320.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,054.81 : 27,675.57 = 11,101.78 : x
  2. Step 2: Convert to fraction form
    20,054.81/27,675.57 = 11,101.78/x
  3. Step 3: Cross multiply
    20,054.81x = 27,675.57 × 11,101.78
  4. Step 4: Simplify right side
    20,054.81x = 307,248,089.51
  5. Step 5: Solve for x
    x = 307,248,089.51/20,054.81
  6. Step 6: Final answer
    x = 15,320.42

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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.