Home / 28,020.73-38,668.35-15,273.91

Finding the Fourth Proportional to 28,020.73, 38,668.35 and 15,273.91

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Solution

The fourth proportional to 28,020.73, 38,668.35 and 15,273.91 is: 21,077.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,020.73 : 38,668.35 = 15,273.91 : x
  2. Step 2: Convert to fraction form
    28,020.73/38,668.35 = 15,273.91/x
  3. Step 3: Cross multiply
    28,020.73x = 38,668.35 × 15,273.91
  4. Step 4: Simplify right side
    28,020.73x = 590,616,897.75
  5. Step 5: Solve for x
    x = 590,616,897.75/28,020.73
  6. Step 6: Final answer
    x = 21,077.86

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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.