Home / 19,277.16-28,920.88-8,184.48

Finding the Fourth Proportional to 19,277.16, 28,920.88 and 8,184.48

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Solution

The fourth proportional to 19,277.16, 28,920.88 and 8,184.48 is: 12,278.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,277.16 : 28,920.88 = 8,184.48 : x
  2. Step 2: Convert to fraction form
    19,277.16/28,920.88 = 8,184.48/x
  3. Step 3: Cross multiply
    19,277.16x = 28,920.88 × 8,184.48
  4. Step 4: Simplify right side
    19,277.16x = 236,702,363.94
  5. Step 5: Solve for x
    x = 236,702,363.94/19,277.16
  6. Step 6: Final answer
    x = 12,278.90

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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.