Home / 19,997.32-29,999.62-10,007.28

Finding the Fourth Proportional to 19,997.32, 29,999.62 and 10,007.28

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Solution

The fourth proportional to 19,997.32, 29,999.62 and 10,007.28 is: 15,012.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,997.32 : 29,999.62 = 10,007.28 : x
  2. Step 2: Convert to fraction form
    19,997.32/29,999.62 = 10,007.28/x
  3. Step 3: Cross multiply
    19,997.32x = 29,999.62 × 10,007.28
  4. Step 4: Simplify right side
    19,997.32x = 300,214,597.23
  5. Step 5: Solve for x
    x = 300,214,597.23/19,997.32
  6. Step 6: Final answer
    x = 15,012.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.