Home / 19,219.92-28,810.08-13,941.78

Finding the Fourth Proportional to 19,219.92, 28,810.08 and 13,941.78

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Solution

The fourth proportional to 19,219.92, 28,810.08 and 13,941.78 is: 20,898.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,219.92 : 28,810.08 = 13,941.78 : x
  2. Step 2: Convert to fraction form
    19,219.92/28,810.08 = 13,941.78/x
  3. Step 3: Cross multiply
    19,219.92x = 28,810.08 × 13,941.78
  4. Step 4: Simplify right side
    19,219.92x = 401,663,797.14
  5. Step 5: Solve for x
    x = 401,663,797.14/19,219.92
  6. Step 6: Final answer
    x = 20,898.31

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1.5x scale

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.