Home / 22,629.96-31,228.50-12,693.32

Finding the Fourth Proportional to 22,629.96, 31,228.50 and 12,693.32

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Solution

The fourth proportional to 22,629.96, 31,228.50 and 12,693.32 is: 17,516.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,629.96 : 31,228.50 = 12,693.32 : x
  2. Step 2: Convert to fraction form
    22,629.96/31,228.50 = 12,693.32/x
  3. Step 3: Cross multiply
    22,629.96x = 31,228.50 × 12,693.32
  4. Step 4: Simplify right side
    22,629.96x = 396,393,343.62
  5. Step 5: Solve for x
    x = 396,393,343.62/22,629.96
  6. Step 6: Final answer
    x = 17,516.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.