Home / 19,998.16-29,997.20-10,140.24

Finding the Fourth Proportional to 19,998.16, 29,997.20 and 10,140.24

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Solution

The fourth proportional to 19,998.16, 29,997.20 and 10,140.24 is: 15,210.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,998.16 : 29,997.20 = 10,140.24 : x
  2. Step 2: Convert to fraction form
    19,998.16/29,997.20 = 10,140.24/x
  3. Step 3: Cross multiply
    19,998.16x = 29,997.20 × 10,140.24
  4. Step 4: Simplify right side
    19,998.16x = 304,178,807.33
  5. Step 5: Solve for x
    x = 304,178,807.33/19,998.16
  6. Step 6: Final answer
    x = 15,210.34

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Similar ratio
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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.