Home / 28,150.26-42,188.46-15,663.84

Finding the Fourth Proportional to 28,150.26, 42,188.46 and 15,663.84

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Solution

The fourth proportional to 28,150.26, 42,188.46 and 15,663.84 is: 23,475.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,150.26 : 42,188.46 = 15,663.84 : x
  2. Step 2: Convert to fraction form
    28,150.26/42,188.46 = 15,663.84/x
  3. Step 3: Cross multiply
    28,150.26x = 42,188.46 × 15,663.84
  4. Step 4: Simplify right side
    28,150.26x = 660,833,287.29
  5. Step 5: Solve for x
    x = 660,833,287.29/28,150.26
  6. Step 6: Final answer
    x = 23,475.21

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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.