Home / 19,154.48-28,719.87-8,055.45

Finding the Fourth Proportional to 19,154.48, 28,719.87 and 8,055.45

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Solution

The fourth proportional to 19,154.48, 28,719.87 and 8,055.45 is: 12,078.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,154.48 : 28,719.87 = 8,055.45 : x
  2. Step 2: Convert to fraction form
    19,154.48/28,719.87 = 8,055.45/x
  3. Step 3: Cross multiply
    19,154.48x = 28,719.87 × 8,055.45
  4. Step 4: Simplify right side
    19,154.48x = 231,351,446.58
  5. Step 5: Solve for x
    x = 231,351,446.58/19,154.48
  6. Step 6: Final answer
    x = 12,078.19

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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.