Home / 18,920.43-28,479.31-16,066.40

Finding the Fourth Proportional to 18,920.43, 28,479.31 and 16,066.40

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Solution

The fourth proportional to 18,920.43, 28,479.31 and 16,066.40 is: 24,183.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,920.43 : 28,479.31 = 16,066.40 : x
  2. Step 2: Convert to fraction form
    18,920.43/28,479.31 = 16,066.40/x
  3. Step 3: Cross multiply
    18,920.43x = 28,479.31 × 16,066.40
  4. Step 4: Simplify right side
    18,920.43x = 457,559,803.62
  5. Step 5: Solve for x
    x = 457,559,803.62/18,920.43
  6. Step 6: Final answer
    x = 24,183.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.