Home / 31,987.38-47,997.26-21,577.26

Finding the Fourth Proportional to 31,987.38, 47,997.26 and 21,577.26

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Solution

The fourth proportional to 31,987.38, 47,997.26 and 21,577.26 is: 32,376.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,987.38 : 47,997.26 = 21,577.26 : x
  2. Step 2: Convert to fraction form
    31,987.38/47,997.26 = 21,577.26/x
  3. Step 3: Cross multiply
    31,987.38x = 47,997.26 × 21,577.26
  4. Step 4: Simplify right side
    31,987.38x = 1,035,649,358.31
  5. Step 5: Solve for x
    x = 1,035,649,358.31/31,987.38
  6. Step 6: Final answer
    x = 32,376.81

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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.