Home / 28,080.69-38,748.42-16,145.75

Finding the Fourth Proportional to 28,080.69, 38,748.42 and 16,145.75

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Solution

The fourth proportional to 28,080.69, 38,748.42 and 16,145.75 is: 22,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,080.69 : 38,748.42 = 16,145.75 : x
  2. Step 2: Convert to fraction form
    28,080.69/38,748.42 = 16,145.75/x
  3. Step 3: Cross multiply
    28,080.69x = 38,748.42 × 16,145.75
  4. Step 4: Simplify right side
    28,080.69x = 625,622,302.22
  5. Step 5: Solve for x
    x = 625,622,302.22/28,080.69
  6. Step 6: Final answer
    x = 22,279.45

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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.