Home / 28,830.48-43,201.98-21,400.22

Finding the Fourth Proportional to 28,830.48, 43,201.98 and 21,400.22

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Solution

The fourth proportional to 28,830.48, 43,201.98 and 21,400.22 is: 32,067.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.48 : 43,201.98 = 21,400.22 : x
  2. Step 2: Convert to fraction form
    28,830.48/43,201.98 = 21,400.22/x
  3. Step 3: Cross multiply
    28,830.48x = 43,201.98 × 21,400.22
  4. Step 4: Simplify right side
    28,830.48x = 924,531,660.43
  5. Step 5: Solve for x
    x = 924,531,660.43/28,830.48
  6. Step 6: Final answer
    x = 32,067.86

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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.