Home / 35,991.28-53,987.88-12,619.12

Finding the Fourth Proportional to 35,991.28, 53,987.88 and 12,619.12

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Solution

The fourth proportional to 35,991.28, 53,987.88 and 12,619.12 is: 18,929.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,991.28 : 53,987.88 = 12,619.12 : x
  2. Step 2: Convert to fraction form
    35,991.28/53,987.88 = 12,619.12/x
  3. Step 3: Cross multiply
    35,991.28x = 53,987.88 × 12,619.12
  4. Step 4: Simplify right side
    35,991.28x = 681,279,536.27
  5. Step 5: Solve for x
    x = 681,279,536.27/35,991.28
  6. Step 6: Final answer
    x = 18,929.02

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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.