Home / 20,695.94-28,560.26-11,264.51

Finding the Fourth Proportional to 20,695.94, 28,560.26 and 11,264.51

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Solution

The fourth proportional to 20,695.94, 28,560.26 and 11,264.51 is: 15,544.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.94 : 28,560.26 = 11,264.51 : x
  2. Step 2: Convert to fraction form
    20,695.94/28,560.26 = 11,264.51/x
  3. Step 3: Cross multiply
    20,695.94x = 28,560.26 × 11,264.51
  4. Step 4: Simplify right side
    20,695.94x = 321,717,334.37
  5. Step 5: Solve for x
    x = 321,717,334.37/20,695.94
  6. Step 6: Final answer
    x = 15,544.95

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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.