Home / 20,583.86-28,405.35-11,631.17

Finding the Fourth Proportional to 20,583.86, 28,405.35 and 11,631.17

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Solution

The fourth proportional to 20,583.86, 28,405.35 and 11,631.17 is: 16,050.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,583.86 : 28,405.35 = 11,631.17 : x
  2. Step 2: Convert to fraction form
    20,583.86/28,405.35 = 11,631.17/x
  3. Step 3: Cross multiply
    20,583.86x = 28,405.35 × 11,631.17
  4. Step 4: Simplify right side
    20,583.86x = 330,387,377.32
  5. Step 5: Solve for x
    x = 330,387,377.32/20,583.86
  6. Step 6: Final answer
    x = 16,050.80

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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.