Home / 19,997.47-29,971.90-15,051.21

Finding the Fourth Proportional to 19,997.47, 29,971.90 and 15,051.21

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Solution

The fourth proportional to 19,997.47, 29,971.90 and 15,051.21 is: 22,558.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,997.47 : 29,971.90 = 15,051.21 : x
  2. Step 2: Convert to fraction form
    19,997.47/29,971.90 = 15,051.21/x
  3. Step 3: Cross multiply
    19,997.47x = 29,971.90 × 15,051.21
  4. Step 4: Simplify right side
    19,997.47x = 451,113,361.00
  5. Step 5: Solve for x
    x = 451,113,361.00/19,997.47
  6. Step 6: Final answer
    x = 22,558.52

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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.