Home / 20,568.64-30,853.14-4,986.28

Finding the Fourth Proportional to 20,568.64, 30,853.14 and 4,986.28

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Solution

The fourth proportional to 20,568.64, 30,853.14 and 4,986.28 is: 7,479.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.64 : 30,853.14 = 4,986.28 : x
  2. Step 2: Convert to fraction form
    20,568.64/30,853.14 = 4,986.28/x
  3. Step 3: Cross multiply
    20,568.64x = 30,853.14 × 4,986.28
  4. Step 4: Simplify right side
    20,568.64x = 153,842,394.92
  5. Step 5: Solve for x
    x = 153,842,394.92/20,568.64
  6. Step 6: Final answer
    x = 7,479.46

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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.