Home / 19,451.87-29,134.04-13,634.45

Finding the Fourth Proportional to 19,451.87, 29,134.04 and 13,634.45

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Solution

The fourth proportional to 19,451.87, 29,134.04 and 13,634.45 is: 20,420.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,451.87 : 29,134.04 = 13,634.45 : x
  2. Step 2: Convert to fraction form
    19,451.87/29,134.04 = 13,634.45/x
  3. Step 3: Cross multiply
    19,451.87x = 29,134.04 × 13,634.45
  4. Step 4: Simplify right side
    19,451.87x = 397,226,397.84
  5. Step 5: Solve for x
    x = 397,226,397.84/19,451.87
  6. Step 6: Final answer
    x = 20,420.99

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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.