Home / 20,898.09-28,834.72-12,395.93

Finding the Fourth Proportional to 20,898.09, 28,834.72 and 12,395.93

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Solution

The fourth proportional to 20,898.09, 28,834.72 and 12,395.93 is: 17,103.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.09 : 28,834.72 = 12,395.93 : x
  2. Step 2: Convert to fraction form
    20,898.09/28,834.72 = 12,395.93/x
  3. Step 3: Cross multiply
    20,898.09x = 28,834.72 × 12,395.93
  4. Step 4: Simplify right side
    20,898.09x = 357,432,995.53
  5. Step 5: Solve for x
    x = 357,432,995.53/20,898.09
  6. Step 6: Final answer
    x = 17,103.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.