Home / 38,389.56-52,980.84-21,625.80

Finding the Fourth Proportional to 38,389.56, 52,980.84 and 21,625.80

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Solution

The fourth proportional to 38,389.56, 52,980.84 and 21,625.80 is: 29,845.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,389.56 : 52,980.84 = 21,625.80 : x
  2. Step 2: Convert to fraction form
    38,389.56/52,980.84 = 21,625.80/x
  3. Step 3: Cross multiply
    38,389.56x = 52,980.84 × 21,625.80
  4. Step 4: Simplify right side
    38,389.56x = 1,145,753,049.67
  5. Step 5: Solve for x
    x = 1,145,753,049.67/38,389.56
  6. Step 6: Final answer
    x = 29,845.43

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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.