Home / 20,967.24-31,454.10-7,113

Finding the Fourth Proportional to 20,967.24, 31,454.10 and 7,113

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Solution

The fourth proportional to 20,967.24, 31,454.10 and 7,113 is: 10,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,967.24 : 31,454.10 = 7,113 : x
  2. Step 2: Convert to fraction form
    20,967.24/31,454.10 = 7,113/x
  3. Step 3: Cross multiply
    20,967.24x = 31,454.10 × 7,113
  4. Step 4: Simplify right side
    20,967.24x = 223,733,013.30
  5. Step 5: Solve for x
    x = 223,733,013.30/20,967.24
  6. Step 6: Final answer
    x = 10,670.60

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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.