Home / 21,596.05-29,792.36-12,638.01

Finding the Fourth Proportional to 21,596.05, 29,792.36 and 12,638.01

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Solution

The fourth proportional to 21,596.05, 29,792.36 and 12,638.01 is: 17,434.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,596.05 : 29,792.36 = 12,638.01 : x
  2. Step 2: Convert to fraction form
    21,596.05/29,792.36 = 12,638.01/x
  3. Step 3: Cross multiply
    21,596.05x = 29,792.36 × 12,638.01
  4. Step 4: Simplify right side
    21,596.05x = 376,516,143.60
  5. Step 5: Solve for x
    x = 376,516,143.60/21,596.05
  6. Step 6: Final answer
    x = 17,434.49

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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.