Home / 36,440.05-54,689.23-18,914.89

Finding the Fourth Proportional to 36,440.05, 54,689.23 and 18,914.89

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Solution

The fourth proportional to 36,440.05, 54,689.23 and 18,914.89 is: 28,387.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,440.05 : 54,689.23 = 18,914.89 : x
  2. Step 2: Convert to fraction form
    36,440.05/54,689.23 = 18,914.89/x
  3. Step 3: Cross multiply
    36,440.05x = 54,689.23 × 18,914.89
  4. Step 4: Simplify right side
    36,440.05x = 1,034,440,585.62
  5. Step 5: Solve for x
    x = 1,034,440,585.62/36,440.05
  6. Step 6: Final answer
    x = 28,387.47

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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.