Home / 31,375.26-43,292.34-18,800.28

Finding the Fourth Proportional to 31,375.26, 43,292.34 and 18,800.28

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Solution

The fourth proportional to 31,375.26, 43,292.34 and 18,800.28 is: 25,941.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,375.26 : 43,292.34 = 18,800.28 : x
  2. Step 2: Convert to fraction form
    31,375.26/43,292.34 = 18,800.28/x
  3. Step 3: Cross multiply
    31,375.26x = 43,292.34 × 18,800.28
  4. Step 4: Simplify right side
    31,375.26x = 813,908,113.86
  5. Step 5: Solve for x
    x = 813,908,113.86/31,375.26
  6. Step 6: Final answer
    x = 25,941.08

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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.