Home / 20,578.51-30,835.33-15,909.94

Finding the Fourth Proportional to 20,578.51, 30,835.33 and 15,909.94

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Solution

The fourth proportional to 20,578.51, 30,835.33 and 15,909.94 is: 23,839.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,578.51 : 30,835.33 = 15,909.94 : x
  2. Step 2: Convert to fraction form
    20,578.51/30,835.33 = 15,909.94/x
  3. Step 3: Cross multiply
    20,578.51x = 30,835.33 × 15,909.94
  4. Step 4: Simplify right side
    20,578.51x = 490,588,133.32
  5. Step 5: Solve for x
    x = 490,588,133.32/20,578.51
  6. Step 6: Final answer
    x = 23,839.83

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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.