Home / 43,830.79-65,755.94-20,444.47

Finding the Fourth Proportional to 43,830.79, 65,755.94 and 20,444.47

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Solution

The fourth proportional to 43,830.79, 65,755.94 and 20,444.47 is: 30,671.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,830.79 : 65,755.94 = 20,444.47 : x
  2. Step 2: Convert to fraction form
    43,830.79/65,755.94 = 20,444.47/x
  3. Step 3: Cross multiply
    43,830.79x = 65,755.94 × 20,444.47
  4. Step 4: Simplify right side
    43,830.79x = 1,344,345,076.04
  5. Step 5: Solve for x
    x = 1,344,345,076.04/43,830.79
  6. Step 6: Final answer
    x = 30,671.25

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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.