Home / 20,187.63-30,287.52-7,707.96

Finding the Fourth Proportional to 20,187.63, 30,287.52 and 7,707.96

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Solution

The fourth proportional to 20,187.63, 30,287.52 and 7,707.96 is: 11,564.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.63 : 30,287.52 = 7,707.96 : x
  2. Step 2: Convert to fraction form
    20,187.63/30,287.52 = 7,707.96/x
  3. Step 3: Cross multiply
    20,187.63x = 30,287.52 × 7,707.96
  4. Step 4: Simplify right side
    20,187.63x = 233,454,992.66
  5. Step 5: Solve for x
    x = 233,454,992.66/20,187.63
  6. Step 6: Final answer
    x = 11,564.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.