Home / 28,803.35-43,102.37-19,920.48

Finding the Fourth Proportional to 28,803.35, 43,102.37 and 19,920.48

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Solution

The fourth proportional to 28,803.35, 43,102.37 and 19,920.48 is: 29,809.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,803.35 : 43,102.37 = 19,920.48 : x
  2. Step 2: Convert to fraction form
    28,803.35/43,102.37 = 19,920.48/x
  3. Step 3: Cross multiply
    28,803.35x = 43,102.37 × 19,920.48
  4. Step 4: Simplify right side
    28,803.35x = 858,619,899.54
  5. Step 5: Solve for x
    x = 858,619,899.54/28,803.35
  6. Step 6: Final answer
    x = 29,809.72

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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.