Home / 20,694.45-28,557.51-11,263.02

Finding the Fourth Proportional to 20,694.45, 28,557.51 and 11,263.02

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Solution

The fourth proportional to 20,694.45, 28,557.51 and 11,263.02 is: 15,542.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.45 : 28,557.51 = 11,263.02 : x
  2. Step 2: Convert to fraction form
    20,694.45/28,557.51 = 11,263.02/x
  3. Step 3: Cross multiply
    20,694.45x = 28,557.51 × 11,263.02
  4. Step 4: Simplify right side
    20,694.45x = 321,643,806.28
  5. Step 5: Solve for x
    x = 321,643,806.28/20,694.45
  6. Step 6: Final answer
    x = 15,542.52

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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.