Home / 22,485.64-31,029.75-12,414.39

Finding the Fourth Proportional to 22,485.64, 31,029.75 and 12,414.39

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Solution

The fourth proportional to 22,485.64, 31,029.75 and 12,414.39 is: 17,131.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,485.64 : 31,029.75 = 12,414.39 : x
  2. Step 2: Convert to fraction form
    22,485.64/31,029.75 = 12,414.39/x
  3. Step 3: Cross multiply
    22,485.64x = 31,029.75 × 12,414.39
  4. Step 4: Simplify right side
    22,485.64x = 385,215,418.10
  5. Step 5: Solve for x
    x = 385,215,418.10/22,485.64
  6. Step 6: Final answer
    x = 17,131.62

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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.