Home / 28,996.32-40,015.44-16,423.68

Finding the Fourth Proportional to 28,996.32, 40,015.44 and 16,423.68

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Solution

The fourth proportional to 28,996.32, 40,015.44 and 16,423.68 is: 22,664.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996.32 : 40,015.44 = 16,423.68 : x
  2. Step 2: Convert to fraction form
    28,996.32/40,015.44 = 16,423.68/x
  3. Step 3: Cross multiply
    28,996.32x = 40,015.44 × 16,423.68
  4. Step 4: Simplify right side
    28,996.32x = 657,200,781.62
  5. Step 5: Solve for x
    x = 657,200,781.62/28,996.32
  6. Step 6: Final answer
    x = 22,664.97

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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.