Home / 37,976.95-52,406.85-20,980.90

Finding the Fourth Proportional to 37,976.95, 52,406.85 and 20,980.90

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Solution

The fourth proportional to 37,976.95, 52,406.85 and 20,980.90 is: 28,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,976.95 : 52,406.85 = 20,980.90 : x
  2. Step 2: Convert to fraction form
    37,976.95/52,406.85 = 20,980.90/x
  3. Step 3: Cross multiply
    37,976.95x = 52,406.85 × 20,980.90
  4. Step 4: Simplify right side
    37,976.95x = 1,099,542,879.17
  5. Step 5: Solve for x
    x = 1,099,542,879.17/37,976.95
  6. Step 6: Final answer
    x = 28,952.90

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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.