Home / 28,898.14-39,878.91-16,151.56

Finding the Fourth Proportional to 28,898.14, 39,878.91 and 16,151.56

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Solution

The fourth proportional to 28,898.14, 39,878.91 and 16,151.56 is: 22,288.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,898.14 : 39,878.91 = 16,151.56 : x
  2. Step 2: Convert to fraction form
    28,898.14/39,878.91 = 16,151.56/x
  3. Step 3: Cross multiply
    28,898.14x = 39,878.91 × 16,151.56
  4. Step 4: Simplify right side
    28,898.14x = 644,106,607.60
  5. Step 5: Solve for x
    x = 644,106,607.60/28,898.14
  6. Step 6: Final answer
    x = 22,288.86

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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.