Home / 28,202.82-38,831.07-21,466.86

Finding the Fourth Proportional to 28,202.82, 38,831.07 and 21,466.86

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Solution

The fourth proportional to 28,202.82, 38,831.07 and 21,466.86 is: 29,556.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,202.82 : 38,831.07 = 21,466.86 : x
  2. Step 2: Convert to fraction form
    28,202.82/38,831.07 = 21,466.86/x
  3. Step 3: Cross multiply
    28,202.82x = 38,831.07 × 21,466.86
  4. Step 4: Simplify right side
    28,202.82x = 833,581,143.34
  5. Step 5: Solve for x
    x = 833,581,143.34/28,202.82
  6. Step 6: Final answer
    x = 29,556.66

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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.