Home / 20,441.63-28,208.04-11,490.47

Finding the Fourth Proportional to 20,441.63, 28,208.04 and 11,490.47

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Solution

The fourth proportional to 20,441.63, 28,208.04 and 11,490.47 is: 15,856.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,441.63 : 28,208.04 = 11,490.47 : x
  2. Step 2: Convert to fraction form
    20,441.63/28,208.04 = 11,490.47/x
  3. Step 3: Cross multiply
    20,441.63x = 28,208.04 × 11,490.47
  4. Step 4: Simplify right side
    20,441.63x = 324,123,707.90
  5. Step 5: Solve for x
    x = 324,123,707.90/20,441.63
  6. Step 6: Final answer
    x = 15,856.06

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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.