Home / 20,708.14-31,066.84-7,560.52

Finding the Fourth Proportional to 20,708.14, 31,066.84 and 7,560.52

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Solution

The fourth proportional to 20,708.14, 31,066.84 and 7,560.52 is: 11,342.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,708.14 : 31,066.84 = 7,560.52 : x
  2. Step 2: Convert to fraction form
    20,708.14/31,066.84 = 7,560.52/x
  3. Step 3: Cross multiply
    20,708.14x = 31,066.84 × 7,560.52
  4. Step 4: Simplify right side
    20,708.14x = 234,881,465.16
  5. Step 5: Solve for x
    x = 234,881,465.16/20,708.14
  6. Step 6: Final answer
    x = 11,342.47

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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.