Home / 38,614.86-57,934.04-18,890.55

Finding the Fourth Proportional to 38,614.86, 57,934.04 and 18,890.55

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Solution

The fourth proportional to 38,614.86, 57,934.04 and 18,890.55 is: 28,341.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,614.86 : 57,934.04 = 18,890.55 : x
  2. Step 2: Convert to fraction form
    38,614.86/57,934.04 = 18,890.55/x
  3. Step 3: Cross multiply
    38,614.86x = 57,934.04 × 18,890.55
  4. Step 4: Simplify right side
    38,614.86x = 1,094,405,784.87
  5. Step 5: Solve for x
    x = 1,094,405,784.87/38,614.86
  6. Step 6: Final answer
    x = 28,341.57

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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.