Home / 28,188.84-38,890.94-16,080.63

Finding the Fourth Proportional to 28,188.84, 38,890.94 and 16,080.63

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Solution

The fourth proportional to 28,188.84, 38,890.94 and 16,080.63 is: 22,185.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188.84 : 38,890.94 = 16,080.63 : x
  2. Step 2: Convert to fraction form
    28,188.84/38,890.94 = 16,080.63/x
  3. Step 3: Cross multiply
    28,188.84x = 38,890.94 × 16,080.63
  4. Step 4: Simplify right side
    28,188.84x = 625,390,590.25
  5. Step 5: Solve for x
    x = 625,390,590.25/28,188.84
  6. Step 6: Final answer
    x = 22,185.75

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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.