Home / 28,100.99-38,784.80-18,042.14

Finding the Fourth Proportional to 28,100.99, 38,784.80 and 18,042.14

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Solution

The fourth proportional to 28,100.99, 38,784.80 and 18,042.14 is: 24,901.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,100.99 : 38,784.80 = 18,042.14 : x
  2. Step 2: Convert to fraction form
    28,100.99/38,784.80 = 18,042.14/x
  3. Step 3: Cross multiply
    28,100.99x = 38,784.80 × 18,042.14
  4. Step 4: Simplify right side
    28,100.99x = 699,760,791.47
  5. Step 5: Solve for x
    x = 699,760,791.47/28,100.99
  6. Step 6: Final answer
    x = 24,901.64

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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.