Home / 20,502.32-28,295.91-11,551.59

Finding the Fourth Proportional to 20,502.32, 28,295.91 and 11,551.59

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Solution

The fourth proportional to 20,502.32, 28,295.91 and 11,551.59 is: 15,942.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,502.32 : 28,295.91 = 11,551.59 : x
  2. Step 2: Convert to fraction form
    20,502.32/28,295.91 = 11,551.59/x
  3. Step 3: Cross multiply
    20,502.32x = 28,295.91 × 11,551.59
  4. Step 4: Simplify right side
    20,502.32x = 326,862,751.00
  5. Step 5: Solve for x
    x = 326,862,751.00/20,502.32
  6. Step 6: Final answer
    x = 15,942.72

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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.