Home / 19,811.88-29,550.84-18,434.04

Finding the Fourth Proportional to 19,811.88, 29,550.84 and 18,434.04

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Solution

The fourth proportional to 19,811.88, 29,550.84 and 18,434.04 is: 27,495.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.88 : 29,550.84 = 18,434.04 : x
  2. Step 2: Convert to fraction form
    19,811.88/29,550.84 = 18,434.04/x
  3. Step 3: Cross multiply
    19,811.88x = 29,550.84 × 18,434.04
  4. Step 4: Simplify right side
    19,811.88x = 544,741,366.59
  5. Step 5: Solve for x
    x = 544,741,366.59/19,811.88
  6. Step 6: Final answer
    x = 27,495.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.