Home / 21,030.78-29,022.60-11,599.14

Finding the Fourth Proportional to 21,030.78, 29,022.60 and 11,599.14

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Solution

The fourth proportional to 21,030.78, 29,022.60 and 11,599.14 is: 16,006.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030.78 : 29,022.60 = 11,599.14 : x
  2. Step 2: Convert to fraction form
    21,030.78/29,022.60 = 11,599.14/x
  3. Step 3: Cross multiply
    21,030.78x = 29,022.60 × 11,599.14
  4. Step 4: Simplify right side
    21,030.78x = 336,637,200.56
  5. Step 5: Solve for x
    x = 336,637,200.56/21,030.78
  6. Step 6: Final answer
    x = 16,006.88

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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.