Home / 21,276.05-29,356.50-12,323.02

Finding the Fourth Proportional to 21,276.05, 29,356.50 and 12,323.02

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Solution

The fourth proportional to 21,276.05, 29,356.50 and 12,323.02 is: 17,003.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.05 : 29,356.50 = 12,323.02 : x
  2. Step 2: Convert to fraction form
    21,276.05/29,356.50 = 12,323.02/x
  3. Step 3: Cross multiply
    21,276.05x = 29,356.50 × 12,323.02
  4. Step 4: Simplify right side
    21,276.05x = 361,760,736.63
  5. Step 5: Solve for x
    x = 361,760,736.63/21,276.05
  6. Step 6: Final answer
    x = 17,003.19

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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.