Home / 20,753.52-31,119.28-8,267.16

Finding the Fourth Proportional to 20,753.52, 31,119.28 and 8,267.16

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Solution

The fourth proportional to 20,753.52, 31,119.28 and 8,267.16 is: 12,396.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,753.52 : 31,119.28 = 8,267.16 : x
  2. Step 2: Convert to fraction form
    20,753.52/31,119.28 = 8,267.16/x
  3. Step 3: Cross multiply
    20,753.52x = 31,119.28 × 8,267.16
  4. Step 4: Simplify right side
    20,753.52x = 257,268,066.84
  5. Step 5: Solve for x
    x = 257,268,066.84/20,753.52
  6. Step 6: Final answer
    x = 12,396.36

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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.