Home / 22,660.11-31,258.35-21,056.45

Finding the Fourth Proportional to 22,660.11, 31,258.35 and 21,056.45

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Solution

The fourth proportional to 22,660.11, 31,258.35 and 21,056.45 is: 29,046.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,660.11 : 31,258.35 = 21,056.45 : x
  2. Step 2: Convert to fraction form
    22,660.11/31,258.35 = 21,056.45/x
  3. Step 3: Cross multiply
    22,660.11x = 31,258.35 × 21,056.45
  4. Step 4: Simplify right side
    22,660.11x = 658,189,883.86
  5. Step 5: Solve for x
    x = 658,189,883.86/22,660.11
  6. Step 6: Final answer
    x = 29,046.19

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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.