Home / 20,835.59-28,752.01-11,402.33

Finding the Fourth Proportional to 20,835.59, 28,752.01 and 11,402.33

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Solution

The fourth proportional to 20,835.59, 28,752.01 and 11,402.33 is: 15,734.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,835.59 : 28,752.01 = 11,402.33 : x
  2. Step 2: Convert to fraction form
    20,835.59/28,752.01 = 11,402.33/x
  3. Step 3: Cross multiply
    20,835.59x = 28,752.01 × 11,402.33
  4. Step 4: Simplify right side
    20,835.59x = 327,839,906.18
  5. Step 5: Solve for x
    x = 327,839,906.18/20,835.59
  6. Step 6: Final answer
    x = 15,734.61

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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.