Home / 32,991.78-45,517.32-18,649.92

Finding the Fourth Proportional to 32,991.78, 45,517.32 and 18,649.92

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Solution

The fourth proportional to 32,991.78, 45,517.32 and 18,649.92 is: 25,730.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,991.78 : 45,517.32 = 18,649.92 : x
  2. Step 2: Convert to fraction form
    32,991.78/45,517.32 = 18,649.92/x
  3. Step 3: Cross multiply
    32,991.78x = 45,517.32 × 18,649.92
  4. Step 4: Simplify right side
    32,991.78x = 848,894,376.61
  5. Step 5: Solve for x
    x = 848,894,376.61/32,991.78
  6. Step 6: Final answer
    x = 25,730.48

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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.