Home / 40,380.09-60,590.98-19,315.86

Finding the Fourth Proportional to 40,380.09, 60,590.98 and 19,315.86

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Solution

The fourth proportional to 40,380.09, 60,590.98 and 19,315.86 is: 28,983.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,380.09 : 60,590.98 = 19,315.86 : x
  2. Step 2: Convert to fraction form
    40,380.09/60,590.98 = 19,315.86/x
  3. Step 3: Cross multiply
    40,380.09x = 60,590.98 × 19,315.86
  4. Step 4: Simplify right side
    40,380.09x = 1,170,366,838.65
  5. Step 5: Solve for x
    x = 1,170,366,838.65/40,380.09
  6. Step 6: Final answer
    x = 28,983.76

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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.