Home / 43,705.11-65,557.75-18,728.97

Finding the Fourth Proportional to 43,705.11, 65,557.75 and 18,728.97

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Solution

The fourth proportional to 43,705.11, 65,557.75 and 18,728.97 is: 28,093.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,705.11 : 65,557.75 = 18,728.97 : x
  2. Step 2: Convert to fraction form
    43,705.11/65,557.75 = 18,728.97/x
  3. Step 3: Cross multiply
    43,705.11x = 65,557.75 × 18,728.97
  4. Step 4: Simplify right side
    43,705.11x = 1,227,829,133.02
  5. Step 5: Solve for x
    x = 1,227,829,133.02/43,705.11
  6. Step 6: Final answer
    x = 28,093.49

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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.