Home / 28,033.92-38,687.36-15,459.84

Finding the Fourth Proportional to 28,033.92, 38,687.36 and 15,459.84

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Solution

The fourth proportional to 28,033.92, 38,687.36 and 15,459.84 is: 21,334.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,033.92 : 38,687.36 = 15,459.84 : x
  2. Step 2: Convert to fraction form
    28,033.92/38,687.36 = 15,459.84/x
  3. Step 3: Cross multiply
    28,033.92x = 38,687.36 × 15,459.84
  4. Step 4: Simplify right side
    28,033.92x = 598,100,395.62
  5. Step 5: Solve for x
    x = 598,100,395.62/28,033.92
  6. Step 6: Final answer
    x = 21,334.88

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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.