Home / 20,304.74-30,470.07-7,834.82

Finding the Fourth Proportional to 20,304.74, 30,470.07 and 7,834.82

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Solution

The fourth proportional to 20,304.74, 30,470.07 and 7,834.82 is: 11,757.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,304.74 : 30,470.07 = 7,834.82 : x
  2. Step 2: Convert to fraction form
    20,304.74/30,470.07 = 7,834.82/x
  3. Step 3: Cross multiply
    20,304.74x = 30,470.07 × 7,834.82
  4. Step 4: Simplify right side
    20,304.74x = 238,727,513.84
  5. Step 5: Solve for x
    x = 238,727,513.84/20,304.74
  6. Step 6: Final answer
    x = 11,757.23

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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.