Home / 28,911.74-43,332.91-14,878.39

Finding the Fourth Proportional to 28,911.74, 43,332.91 and 14,878.39

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Solution

The fourth proportional to 28,911.74, 43,332.91 and 14,878.39 is: 22,299.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,911.74 : 43,332.91 = 14,878.39 : x
  2. Step 2: Convert to fraction form
    28,911.74/43,332.91 = 14,878.39/x
  3. Step 3: Cross multiply
    28,911.74x = 43,332.91 × 14,878.39
  4. Step 4: Simplify right side
    28,911.74x = 644,723,870.54
  5. Step 5: Solve for x
    x = 644,723,870.54/28,911.74
  6. Step 6: Final answer
    x = 22,299.73

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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.