Home / 20,535.39-28,336.43-11,582.36

Finding the Fourth Proportional to 20,535.39, 28,336.43 and 11,582.36

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Solution

The fourth proportional to 20,535.39, 28,336.43 and 11,582.36 is: 15,982.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535.39 : 28,336.43 = 11,582.36 : x
  2. Step 2: Convert to fraction form
    20,535.39/28,336.43 = 11,582.36/x
  3. Step 3: Cross multiply
    20,535.39x = 28,336.43 × 11,582.36
  4. Step 4: Simplify right side
    20,535.39x = 328,202,726.91
  5. Step 5: Solve for x
    x = 328,202,726.91/20,535.39
  6. Step 6: Final answer
    x = 15,982.30

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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.