Home / 20,225.64-27,911.51-11,273.71

Finding the Fourth Proportional to 20,225.64, 27,911.51 and 11,273.71

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Solution

The fourth proportional to 20,225.64, 27,911.51 and 11,273.71 is: 15,557.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.64 : 27,911.51 = 11,273.71 : x
  2. Step 2: Convert to fraction form
    20,225.64/27,911.51 = 11,273.71/x
  3. Step 3: Cross multiply
    20,225.64x = 27,911.51 × 11,273.71
  4. Step 4: Simplify right side
    20,225.64x = 314,666,143.51
  5. Step 5: Solve for x
    x = 314,666,143.51/20,225.64
  6. Step 6: Final answer
    x = 15,557.79

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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.