Home / 31,460.12-43,414.21-18,039.23

Finding the Fourth Proportional to 31,460.12, 43,414.21 and 18,039.23

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Solution

The fourth proportional to 31,460.12, 43,414.21 and 18,039.23 is: 24,893.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,460.12 : 43,414.21 = 18,039.23 : x
  2. Step 2: Convert to fraction form
    31,460.12/43,414.21 = 18,039.23/x
  3. Step 3: Cross multiply
    31,460.12x = 43,414.21 × 18,039.23
  4. Step 4: Simplify right side
    31,460.12x = 783,158,919.46
  5. Step 5: Solve for x
    x = 783,158,919.46/31,460.12
  6. Step 6: Final answer
    x = 24,893.70

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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.