Home / 20,657.73-28,507.84-11,226.29

Finding the Fourth Proportional to 20,657.73, 28,507.84 and 11,226.29

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Solution

The fourth proportional to 20,657.73, 28,507.84 and 11,226.29 is: 15,492.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657.73 : 28,507.84 = 11,226.29 : x
  2. Step 2: Convert to fraction form
    20,657.73/28,507.84 = 11,226.29/x
  3. Step 3: Cross multiply
    20,657.73x = 28,507.84 × 11,226.29
  4. Step 4: Simplify right side
    20,657.73x = 320,037,332.01
  5. Step 5: Solve for x
    x = 320,037,332.01/20,657.73
  6. Step 6: Final answer
    x = 15,492.38

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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.