Home / 21,318.24-31,977.60-10,233.60

Finding the Fourth Proportional to 21,318.24, 31,977.60 and 10,233.60

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Solution

The fourth proportional to 21,318.24, 31,977.60 and 10,233.60 is: 15,350.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,318.24 : 31,977.60 = 10,233.60 : x
  2. Step 2: Convert to fraction form
    21,318.24/31,977.60 = 10,233.60/x
  3. Step 3: Cross multiply
    21,318.24x = 31,977.60 × 10,233.60
  4. Step 4: Simplify right side
    21,318.24x = 327,245,967.36
  5. Step 5: Solve for x
    x = 327,245,967.36/21,318.24
  6. Step 6: Final answer
    x = 15,350.52

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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.