Home / 20,473.04-28,252.44-11,520.51

Finding the Fourth Proportional to 20,473.04, 28,252.44 and 11,520.51

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Solution

The fourth proportional to 20,473.04, 28,252.44 and 11,520.51 is: 15,898.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,473.04 : 28,252.44 = 11,520.51 : x
  2. Step 2: Convert to fraction form
    20,473.04/28,252.44 = 11,520.51/x
  3. Step 3: Cross multiply
    20,473.04x = 28,252.44 × 11,520.51
  4. Step 4: Simplify right side
    20,473.04x = 325,482,517.54
  5. Step 5: Solve for x
    x = 325,482,517.54/20,473.04
  6. Step 6: Final answer
    x = 15,898.11

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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.