Home / 21,053.43-31,599.27-11,200.95

Finding the Fourth Proportional to 21,053.43, 31,599.27 and 11,200.95

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Solution

The fourth proportional to 21,053.43, 31,599.27 and 11,200.95 is: 16,811.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053.43 : 31,599.27 = 11,200.95 : x
  2. Step 2: Convert to fraction form
    21,053.43/31,599.27 = 11,200.95/x
  3. Step 3: Cross multiply
    21,053.43x = 31,599.27 × 11,200.95
  4. Step 4: Simplify right side
    21,053.43x = 353,941,843.31
  5. Step 5: Solve for x
    x = 353,941,843.31/21,053.43
  6. Step 6: Final answer
    x = 16,811.60

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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.