Home / 20,359.11-28,100.01-11,862.63

Finding the Fourth Proportional to 20,359.11, 28,100.01 and 11,862.63

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Solution

The fourth proportional to 20,359.11, 28,100.01 and 11,862.63 is: 16,373.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,359.11 : 28,100.01 = 11,862.63 : x
  2. Step 2: Convert to fraction form
    20,359.11/28,100.01 = 11,862.63/x
  3. Step 3: Cross multiply
    20,359.11x = 28,100.01 × 11,862.63
  4. Step 4: Simplify right side
    20,359.11x = 333,340,021.63
  5. Step 5: Solve for x
    x = 333,340,021.63/20,359.11
  6. Step 6: Final answer
    x = 16,373.02

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1.5x scale

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.