Home / 20,845.54-31,253.73-10,451.62

Finding the Fourth Proportional to 20,845.54, 31,253.73 and 10,451.62

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Solution

The fourth proportional to 20,845.54, 31,253.73 and 10,451.62 is: 15,670.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845.54 : 31,253.73 = 10,451.62 : x
  2. Step 2: Convert to fraction form
    20,845.54/31,253.73 = 10,451.62/x
  3. Step 3: Cross multiply
    20,845.54x = 31,253.73 × 10,451.62
  4. Step 4: Simplify right side
    20,845.54x = 326,652,109.54
  5. Step 5: Solve for x
    x = 326,652,109.54/20,845.54
  6. Step 6: Final answer
    x = 15,670.12

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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.