Home / 36,216.40-49,979.28-20,300.80

Finding the Fourth Proportional to 36,216.40, 49,979.28 and 20,300.80

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Solution

The fourth proportional to 36,216.40, 49,979.28 and 20,300.80 is: 28,015.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,216.40 : 49,979.28 = 20,300.80 : x
  2. Step 2: Convert to fraction form
    36,216.40/49,979.28 = 20,300.80/x
  3. Step 3: Cross multiply
    36,216.40x = 49,979.28 × 20,300.80
  4. Step 4: Simplify right side
    36,216.40x = 1,014,619,367.42
  5. Step 5: Solve for x
    x = 1,014,619,367.42/36,216.40
  6. Step 6: Final answer
    x = 28,015.47

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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.