Home / 19,176.40-28,767.44-9,821.71

Finding the Fourth Proportional to 19,176.40, 28,767.44 and 9,821.71

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Solution

The fourth proportional to 19,176.40, 28,767.44 and 9,821.71 is: 14,734.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,176.40 : 28,767.44 = 9,821.71 : x
  2. Step 2: Convert to fraction form
    19,176.40/28,767.44 = 9,821.71/x
  3. Step 3: Cross multiply
    19,176.40x = 28,767.44 × 9,821.71
  4. Step 4: Simplify right side
    19,176.40x = 282,545,453.12
  5. Step 5: Solve for x
    x = 282,545,453.12/19,176.40
  6. Step 6: Final answer
    x = 14,734.02

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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.