Home / 20,568.39-30,852.31-4,986.15

Finding the Fourth Proportional to 20,568.39, 30,852.31 and 4,986.15

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Solution

The fourth proportional to 20,568.39, 30,852.31 and 4,986.15 is: 7,479.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.39 : 30,852.31 = 4,986.15 : x
  2. Step 2: Convert to fraction form
    20,568.39/30,852.31 = 4,986.15/x
  3. Step 3: Cross multiply
    20,568.39x = 30,852.31 × 4,986.15
  4. Step 4: Simplify right side
    20,568.39x = 153,834,245.51
  5. Step 5: Solve for x
    x = 153,834,245.51/20,568.39
  6. Step 6: Final answer
    x = 7,479.16

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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.