Home / 20,677.25-28,536.72-12,182.04

Finding the Fourth Proportional to 20,677.25, 28,536.72 and 12,182.04

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Solution

The fourth proportional to 20,677.25, 28,536.72 and 12,182.04 is: 16,812.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.25 : 28,536.72 = 12,182.04 : x
  2. Step 2: Convert to fraction form
    20,677.25/28,536.72 = 12,182.04/x
  3. Step 3: Cross multiply
    20,677.25x = 28,536.72 × 12,182.04
  4. Step 4: Simplify right side
    20,677.25x = 347,635,464.51
  5. Step 5: Solve for x
    x = 347,635,464.51/20,677.25
  6. Step 6: Final answer
    x = 16,812.46

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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.