Home / 36,778.60-55,058.55-21,979.90

Finding the Fourth Proportional to 36,778.60, 55,058.55 and 21,979.90

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Solution

The fourth proportional to 36,778.60, 55,058.55 and 21,979.90 is: 32,904.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,778.60 : 55,058.55 = 21,979.90 : x
  2. Step 2: Convert to fraction form
    36,778.60/55,058.55 = 21,979.90/x
  3. Step 3: Cross multiply
    36,778.60x = 55,058.55 × 21,979.90
  4. Step 4: Simplify right side
    36,778.60x = 1,210,181,423.15
  5. Step 5: Solve for x
    x = 1,210,181,423.15/36,778.60
  6. Step 6: Final answer
    x = 32,904.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.