Home / 37,078.20-51,174.36-21,979.35

Finding the Fourth Proportional to 37,078.20, 51,174.36 and 21,979.35

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Solution

The fourth proportional to 37,078.20, 51,174.36 and 21,979.35 is: 30,335.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,078.20 : 51,174.36 = 21,979.35 : x
  2. Step 2: Convert to fraction form
    37,078.20/51,174.36 = 21,979.35/x
  3. Step 3: Cross multiply
    37,078.20x = 51,174.36 × 21,979.35
  4. Step 4: Simplify right side
    37,078.20x = 1,124,779,169.47
  5. Step 5: Solve for x
    x = 1,124,779,169.47/37,078.20
  6. Step 6: Final answer
    x = 30,335.32

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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.