Home / 21,044.18-31,507.34-15,853.70

Finding the Fourth Proportional to 21,044.18, 31,507.34 and 15,853.70

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Solution

The fourth proportional to 21,044.18, 31,507.34 and 15,853.70 is: 23,736.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,044.18 : 31,507.34 = 15,853.70 : x
  2. Step 2: Convert to fraction form
    21,044.18/31,507.34 = 15,853.70/x
  3. Step 3: Cross multiply
    21,044.18x = 31,507.34 × 15,853.70
  4. Step 4: Simplify right side
    21,044.18x = 499,507,916.16
  5. Step 5: Solve for x
    x = 499,507,916.16/21,044.18
  6. Step 6: Final answer
    x = 23,736.15

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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.