Home / 21,258.74-29,337.33-11,699.73

Finding the Fourth Proportional to 21,258.74, 29,337.33 and 11,699.73

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Solution

The fourth proportional to 21,258.74, 29,337.33 and 11,699.73 is: 16,145.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258.74 : 29,337.33 = 11,699.73 : x
  2. Step 2: Convert to fraction form
    21,258.74/29,337.33 = 11,699.73/x
  3. Step 3: Cross multiply
    21,258.74x = 29,337.33 × 11,699.73
  4. Step 4: Simplify right side
    21,258.74x = 343,238,839.92
  5. Step 5: Solve for x
    x = 343,238,839.92/21,258.74
  6. Step 6: Final answer
    x = 16,145.78

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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.