Home / 31,825.40-43,922.54-18,214.70

Finding the Fourth Proportional to 31,825.40, 43,922.54 and 18,214.70

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Solution

The fourth proportional to 31,825.40, 43,922.54 and 18,214.70 is: 25,138.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,825.40 : 43,922.54 = 18,214.70 : x
  2. Step 2: Convert to fraction form
    31,825.40/43,922.54 = 18,214.70/x
  3. Step 3: Cross multiply
    31,825.40x = 43,922.54 × 18,214.70
  4. Step 4: Simplify right side
    31,825.40x = 800,035,889.34
  5. Step 5: Solve for x
    x = 800,035,889.34/31,825.40
  6. Step 6: Final answer
    x = 25,138.28

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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.