Home / 20,802.42-28,707.08-11,850.44

Finding the Fourth Proportional to 20,802.42, 28,707.08 and 11,850.44

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Solution

The fourth proportional to 20,802.42, 28,707.08 and 11,850.44 is: 16,353.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802.42 : 28,707.08 = 11,850.44 : x
  2. Step 2: Convert to fraction form
    20,802.42/28,707.08 = 11,850.44/x
  3. Step 3: Cross multiply
    20,802.42x = 28,707.08 × 11,850.44
  4. Step 4: Simplify right side
    20,802.42x = 340,191,326.33
  5. Step 5: Solve for x
    x = 340,191,326.33/20,802.42
  6. Step 6: Final answer
    x = 16,353.45

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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.