Home / 19,278.33-28,884.46-12,941.35

Finding the Fourth Proportional to 19,278.33, 28,884.46 and 12,941.35

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Solution

The fourth proportional to 19,278.33, 28,884.46 and 12,941.35 is: 19,389.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.33 : 28,884.46 = 12,941.35 : x
  2. Step 2: Convert to fraction form
    19,278.33/28,884.46 = 12,941.35/x
  3. Step 3: Cross multiply
    19,278.33x = 28,884.46 × 12,941.35
  4. Step 4: Simplify right side
    19,278.33x = 373,803,906.42
  5. Step 5: Solve for x
    x = 373,803,906.42/19,278.33
  6. Step 6: Final answer
    x = 19,389.85

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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.