Home / 37,987.12-56,997.38-20,213.59

Finding the Fourth Proportional to 37,987.12, 56,997.38 and 20,213.59

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Solution

The fourth proportional to 37,987.12, 56,997.38 and 20,213.59 is: 30,329.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,987.12 : 56,997.38 = 20,213.59 : x
  2. Step 2: Convert to fraction form
    37,987.12/56,997.38 = 20,213.59/x
  3. Step 3: Cross multiply
    37,987.12x = 56,997.38 × 20,213.59
  4. Step 4: Simplify right side
    37,987.12x = 1,152,121,792.17
  5. Step 5: Solve for x
    x = 1,152,121,792.17/37,987.12
  6. Step 6: Final answer
    x = 30,329.28

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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.