Home / 30,426.32-41,989.20-16,997.12

Finding the Fourth Proportional to 30,426.32, 41,989.20 and 16,997.12

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Solution

The fourth proportional to 30,426.32, 41,989.20 and 16,997.12 is: 23,456.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,426.32 : 41,989.20 = 16,997.12 : x
  2. Step 2: Convert to fraction form
    30,426.32/41,989.20 = 16,997.12/x
  3. Step 3: Cross multiply
    30,426.32x = 41,989.20 × 16,997.12
  4. Step 4: Simplify right side
    30,426.32x = 713,695,471.10
  5. Step 5: Solve for x
    x = 713,695,471.10/30,426.32
  6. Step 6: Final answer
    x = 23,456.52

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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.