Home / 20,882.16-31,319.92-6,087.62

Finding the Fourth Proportional to 20,882.16, 31,319.92 and 6,087.62

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Solution

The fourth proportional to 20,882.16, 31,319.92 and 6,087.62 is: 9,130.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,882.16 : 31,319.92 = 6,087.62 : x
  2. Step 2: Convert to fraction form
    20,882.16/31,319.92 = 6,087.62/x
  3. Step 3: Cross multiply
    20,882.16x = 31,319.92 × 6,087.62
  4. Step 4: Simplify right side
    20,882.16x = 190,663,823.06
  5. Step 5: Solve for x
    x = 190,663,823.06/20,882.16
  6. Step 6: Final answer
    x = 9,130.46

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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.