Home / 28,188.49-38,890.46-16,080.28

Finding the Fourth Proportional to 28,188.49, 38,890.46 and 16,080.28

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Solution

The fourth proportional to 28,188.49, 38,890.46 and 16,080.28 is: 22,185.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188.49 : 38,890.46 = 16,080.28 : x
  2. Step 2: Convert to fraction form
    28,188.49/38,890.46 = 16,080.28/x
  3. Step 3: Cross multiply
    28,188.49x = 38,890.46 × 16,080.28
  4. Step 4: Simplify right side
    28,188.49x = 625,369,291.68
  5. Step 5: Solve for x
    x = 625,369,291.68/28,188.49
  6. Step 6: Final answer
    x = 22,185.27

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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.