Home / 20,710.57-31,066.88-5,921.66

Finding the Fourth Proportional to 20,710.57, 31,066.88 and 5,921.66

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Solution

The fourth proportional to 20,710.57, 31,066.88 and 5,921.66 is: 8,882.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710.57 : 31,066.88 = 5,921.66 : x
  2. Step 2: Convert to fraction form
    20,710.57/31,066.88 = 5,921.66/x
  3. Step 3: Cross multiply
    20,710.57x = 31,066.88 × 5,921.66
  4. Step 4: Simplify right side
    20,710.57x = 183,967,548.68
  5. Step 5: Solve for x
    x = 183,967,548.68/20,710.57
  6. Step 6: Final answer
    x = 8,882.79

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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.