Home / 21,140.01-31,682.03-11,258.01

Finding the Fourth Proportional to 21,140.01, 31,682.03 and 11,258.01

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Solution

The fourth proportional to 21,140.01, 31,682.03 and 11,258.01 is: 16,872.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,140.01 : 31,682.03 = 11,258.01 : x
  2. Step 2: Convert to fraction form
    21,140.01/31,682.03 = 11,258.01/x
  3. Step 3: Cross multiply
    21,140.01x = 31,682.03 × 11,258.01
  4. Step 4: Simplify right side
    21,140.01x = 356,676,554.27
  5. Step 5: Solve for x
    x = 356,676,554.27/21,140.01
  6. Step 6: Final answer
    x = 16,872.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.