Home / 20,585.64-28,409.16-11,633.52

Finding the Fourth Proportional to 20,585.64, 28,409.16 and 11,633.52

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Solution

The fourth proportional to 20,585.64, 28,409.16 and 11,633.52 is: 16,054.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,585.64 : 28,409.16 = 11,633.52 : x
  2. Step 2: Convert to fraction form
    20,585.64/28,409.16 = 11,633.52/x
  3. Step 3: Cross multiply
    20,585.64x = 28,409.16 × 11,633.52
  4. Step 4: Simplify right side
    20,585.64x = 330,498,531.04
  5. Step 5: Solve for x
    x = 330,498,531.04/20,585.64
  6. Step 6: Final answer
    x = 16,054.81

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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.