Home / 31,263.72-43,135.38-20,092.20

Finding the Fourth Proportional to 31,263.72, 43,135.38 and 20,092.20

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Solution

The fourth proportional to 31,263.72, 43,135.38 and 20,092.20 is: 27,721.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,263.72 : 43,135.38 = 20,092.20 : x
  2. Step 2: Convert to fraction form
    31,263.72/43,135.38 = 20,092.20/x
  3. Step 3: Cross multiply
    31,263.72x = 43,135.38 × 20,092.20
  4. Step 4: Simplify right side
    31,263.72x = 866,684,682.04
  5. Step 5: Solve for x
    x = 866,684,682.04/31,263.72
  6. Step 6: Final answer
    x = 27,721.74

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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.