Home / 20,237.16-27,951.66-15,223.80

Finding the Fourth Proportional to 20,237.16, 27,951.66 and 15,223.80

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Solution

The fourth proportional to 20,237.16, 27,951.66 and 15,223.80 is: 21,027.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.16 : 27,951.66 = 15,223.80 : x
  2. Step 2: Convert to fraction form
    20,237.16/27,951.66 = 15,223.80/x
  3. Step 3: Cross multiply
    20,237.16x = 27,951.66 × 15,223.80
  4. Step 4: Simplify right side
    20,237.16x = 425,530,481.51
  5. Step 5: Solve for x
    x = 425,530,481.51/20,237.16
  6. Step 6: Final answer
    x = 21,027.18

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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.