Home / 28,194.24-38,909.44-15,619.04

Finding the Fourth Proportional to 28,194.24, 38,909.44 and 15,619.04

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Solution

The fourth proportional to 28,194.24, 38,909.44 and 15,619.04 is: 21,555.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,194.24 : 38,909.44 = 15,619.04 : x
  2. Step 2: Convert to fraction form
    28,194.24/38,909.44 = 15,619.04/x
  3. Step 3: Cross multiply
    28,194.24x = 38,909.44 × 15,619.04
  4. Step 4: Simplify right side
    28,194.24x = 607,728,099.74
  5. Step 5: Solve for x
    x = 607,728,099.74/28,194.24
  6. Step 6: Final answer
    x = 21,555.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.