Home / 38,620.98-53,284.57-21,622.73

Finding the Fourth Proportional to 38,620.98, 53,284.57 and 21,622.73

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Solution

The fourth proportional to 38,620.98, 53,284.57 and 21,622.73 is: 29,832.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,620.98 : 53,284.57 = 21,622.73 : x
  2. Step 2: Convert to fraction form
    38,620.98/53,284.57 = 21,622.73/x
  3. Step 3: Cross multiply
    38,620.98x = 53,284.57 × 21,622.73
  4. Step 4: Simplify right side
    38,620.98x = 1,152,157,870.28
  5. Step 5: Solve for x
    x = 1,152,157,870.28/38,620.98
  6. Step 6: Final answer
    x = 29,832.43

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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.