Home / 22,520.70-31,012.20-19,310.40

Finding the Fourth Proportional to 22,520.70, 31,012.20 and 19,310.40

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Solution

The fourth proportional to 22,520.70, 31,012.20 and 19,310.40 is: 26,591.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,520.70 : 31,012.20 = 19,310.40 : x
  2. Step 2: Convert to fraction form
    22,520.70/31,012.20 = 19,310.40/x
  3. Step 3: Cross multiply
    22,520.70x = 31,012.20 × 19,310.40
  4. Step 4: Simplify right side
    22,520.70x = 598,857,986.88
  5. Step 5: Solve for x
    x = 598,857,986.88/22,520.70
  6. Step 6: Final answer
    x = 26,591.45

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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.