Home / 20,865.24-31,297.91-6,074.50

Finding the Fourth Proportional to 20,865.24, 31,297.91 and 6,074.50

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Solution

The fourth proportional to 20,865.24, 31,297.91 and 6,074.50 is: 9,111.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,865.24 : 31,297.91 = 6,074.50 : x
  2. Step 2: Convert to fraction form
    20,865.24/31,297.91 = 6,074.50/x
  3. Step 3: Cross multiply
    20,865.24x = 31,297.91 × 6,074.50
  4. Step 4: Simplify right side
    20,865.24x = 190,119,154.30
  5. Step 5: Solve for x
    x = 190,119,154.30/20,865.24
  6. Step 6: Final answer
    x = 9,111.76

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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.