Home / 20,527.18-28,326.94-11,574.61

Finding the Fourth Proportional to 20,527.18, 28,326.94 and 11,574.61

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Solution

The fourth proportional to 20,527.18, 28,326.94 and 11,574.61 is: 15,972.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.18 : 28,326.94 = 11,574.61 : x
  2. Step 2: Convert to fraction form
    20,527.18/28,326.94 = 11,574.61/x
  3. Step 3: Cross multiply
    20,527.18x = 28,326.94 × 11,574.61
  4. Step 4: Simplify right side
    20,527.18x = 327,873,282.99
  5. Step 5: Solve for x
    x = 327,873,282.99/20,527.18
  6. Step 6: Final answer
    x = 15,972.64

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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.