Home / 14,310.45-21,465.45-3,922.20

Finding the Fourth Proportional to 14,310.45, 21,465.45 and 3,922.20

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Solution

The fourth proportional to 14,310.45, 21,465.45 and 3,922.20 is: 5,883.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,310.45 : 21,465.45 = 3,922.20 : x
  2. Step 2: Convert to fraction form
    14,310.45/21,465.45 = 3,922.20/x
  3. Step 3: Cross multiply
    14,310.45x = 21,465.45 × 3,922.20
  4. Step 4: Simplify right side
    14,310.45x = 84,191,787.99
  5. Step 5: Solve for x
    x = 84,191,787.99/14,310.45
  6. Step 6: Final answer
    x = 5,883.24

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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.