Home / 20,568.06-30,839.64-10,017.30

Finding the Fourth Proportional to 20,568.06, 30,839.64 and 10,017.30

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Solution

The fourth proportional to 20,568.06, 30,839.64 and 10,017.30 is: 15,019.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.06 : 30,839.64 = 10,017.30 : x
  2. Step 2: Convert to fraction form
    20,568.06/30,839.64 = 10,017.30/x
  3. Step 3: Cross multiply
    20,568.06x = 30,839.64 × 10,017.30
  4. Step 4: Simplify right side
    20,568.06x = 308,929,925.77
  5. Step 5: Solve for x
    x = 308,929,925.77/20,568.06
  6. Step 6: Final answer
    x = 15,019.89

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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.