Home / 23,181.64-31,995.20-15,223.66

Finding the Fourth Proportional to 23,181.64, 31,995.20 and 15,223.66

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Solution

The fourth proportional to 23,181.64, 31,995.20 and 15,223.66 is: 21,011.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,181.64 : 31,995.20 = 15,223.66 : x
  2. Step 2: Convert to fraction form
    23,181.64/31,995.20 = 15,223.66/x
  3. Step 3: Cross multiply
    23,181.64x = 31,995.20 × 15,223.66
  4. Step 4: Simplify right side
    23,181.64x = 487,084,046.43
  5. Step 5: Solve for x
    x = 487,084,046.43/23,181.64
  6. Step 6: Final answer
    x = 21,011.63

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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.