Home / 43,922.45-65,920.63-18,981.40

Finding the Fourth Proportional to 43,922.45, 65,920.63 and 18,981.40

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Solution

The fourth proportional to 43,922.45, 65,920.63 and 18,981.40 is: 28,488.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,922.45 : 65,920.63 = 18,981.40 : x
  2. Step 2: Convert to fraction form
    43,922.45/65,920.63 = 18,981.40/x
  3. Step 3: Cross multiply
    43,922.45x = 65,920.63 × 18,981.40
  4. Step 4: Simplify right side
    43,922.45x = 1,251,265,846.28
  5. Step 5: Solve for x
    x = 1,251,265,846.28/43,922.45
  6. Step 6: Final answer
    x = 28,488.07

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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.