Home / 30,371.66-41,917.51-18,432.70

Finding the Fourth Proportional to 30,371.66, 41,917.51 and 18,432.70

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Solution

The fourth proportional to 30,371.66, 41,917.51 and 18,432.70 is: 25,439.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,371.66 : 41,917.51 = 18,432.70 : x
  2. Step 2: Convert to fraction form
    30,371.66/41,917.51 = 18,432.70/x
  3. Step 3: Cross multiply
    30,371.66x = 41,917.51 × 18,432.70
  4. Step 4: Simplify right side
    30,371.66x = 772,652,804.82
  5. Step 5: Solve for x
    x = 772,652,804.82/30,371.66
  6. Step 6: Final answer
    x = 25,439.92

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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.