Home / 20,341.08-28,065.86-11,838.06

Finding the Fourth Proportional to 20,341.08, 28,065.86 and 11,838.06

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Solution

The fourth proportional to 20,341.08, 28,065.86 and 11,838.06 is: 16,333.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341.08 : 28,065.86 = 11,838.06 : x
  2. Step 2: Convert to fraction form
    20,341.08/28,065.86 = 11,838.06/x
  3. Step 3: Cross multiply
    20,341.08x = 28,065.86 × 11,838.06
  4. Step 4: Simplify right side
    20,341.08x = 332,245,334.63
  5. Step 5: Solve for x
    x = 332,245,334.63/20,341.08
  6. Step 6: Final answer
    x = 16,333.71

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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.