Home / 20,215.23-27,894.45-11,262.07

Finding the Fourth Proportional to 20,215.23, 27,894.45 and 11,262.07

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Solution

The fourth proportional to 20,215.23, 27,894.45 and 11,262.07 is: 15,540.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.23 : 27,894.45 = 11,262.07 : x
  2. Step 2: Convert to fraction form
    20,215.23/27,894.45 = 11,262.07/x
  3. Step 3: Cross multiply
    20,215.23x = 27,894.45 × 11,262.07
  4. Step 4: Simplify right side
    20,215.23x = 314,149,248.51
  5. Step 5: Solve for x
    x = 314,149,248.51/20,215.23
  6. Step 6: Final answer
    x = 15,540.23

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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.