Home / 21,337.41-29,438.73-11,904.15

Finding the Fourth Proportional to 21,337.41, 29,438.73 and 11,904.15

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Solution

The fourth proportional to 21,337.41, 29,438.73 and 11,904.15 is: 16,423.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,337.41 : 29,438.73 = 11,904.15 : x
  2. Step 2: Convert to fraction form
    21,337.41/29,438.73 = 11,904.15/x
  3. Step 3: Cross multiply
    21,337.41x = 29,438.73 × 11,904.15
  4. Step 4: Simplify right side
    21,337.41x = 350,443,057.73
  5. Step 5: Solve for x
    x = 350,443,057.73/21,337.41
  6. Step 6: Final answer
    x = 16,423.88

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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.