Home / 20,425.35-28,184.81-11,473.83

Finding the Fourth Proportional to 20,425.35, 28,184.81 and 11,473.83

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Solution

The fourth proportional to 20,425.35, 28,184.81 and 11,473.83 is: 15,832.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,425.35 : 28,184.81 = 11,473.83 : x
  2. Step 2: Convert to fraction form
    20,425.35/28,184.81 = 11,473.83/x
  3. Step 3: Cross multiply
    20,425.35x = 28,184.81 × 11,473.83
  4. Step 4: Simplify right side
    20,425.35x = 323,387,661.15
  5. Step 5: Solve for x
    x = 323,387,661.15/20,425.35
  6. Step 6: Final answer
    x = 15,832.66

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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.