Home / 27,042.75-37,284.98-20,899.71

Finding the Fourth Proportional to 27,042.75, 37,284.98 and 20,899.71

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Solution

The fourth proportional to 27,042.75, 37,284.98 and 20,899.71 is: 28,815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,042.75 : 37,284.98 = 20,899.71 : x
  2. Step 2: Convert to fraction form
    27,042.75/37,284.98 = 20,899.71/x
  3. Step 3: Cross multiply
    27,042.75x = 37,284.98 × 20,899.71
  4. Step 4: Simplify right side
    27,042.75x = 779,245,164.86
  5. Step 5: Solve for x
    x = 779,245,164.86/27,042.75
  6. Step 6: Final answer
    x = 28,815.31

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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.