Home / 21,044.49-29,052.32-15,372.87

Finding the Fourth Proportional to 21,044.49, 29,052.32 and 15,372.87

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Solution

The fourth proportional to 21,044.49, 29,052.32 and 15,372.87 is: 21,222.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,044.49 : 29,052.32 = 15,372.87 : x
  2. Step 2: Convert to fraction form
    21,044.49/29,052.32 = 15,372.87/x
  3. Step 3: Cross multiply
    21,044.49x = 29,052.32 × 15,372.87
  4. Step 4: Simplify right side
    21,044.49x = 446,617,461.69
  5. Step 5: Solve for x
    x = 446,617,461.69/21,044.49
  6. Step 6: Final answer
    x = 21,222.54

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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.