Home / 20,356.11-28,095.86-11,859.62

Finding the Fourth Proportional to 20,356.11, 28,095.86 and 11,859.62

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Solution

The fourth proportional to 20,356.11, 28,095.86 and 11,859.62 is: 16,368.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,356.11 : 28,095.86 = 11,859.62 : x
  2. Step 2: Convert to fraction form
    20,356.11/28,095.86 = 11,859.62/x
  3. Step 3: Cross multiply
    20,356.11x = 28,095.86 × 11,859.62
  4. Step 4: Simplify right side
    20,356.11x = 333,206,112.34
  5. Step 5: Solve for x
    x = 333,206,112.34/20,356.11
  6. Step 6: Final answer
    x = 16,368.85

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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.