Home / 19,675.80-29,513.70-18,910.35

Finding the Fourth Proportional to 19,675.80, 29,513.70 and 18,910.35

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Solution

The fourth proportional to 19,675.80, 29,513.70 and 18,910.35 is: 28,365.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,675.80 : 29,513.70 = 18,910.35 : x
  2. Step 2: Convert to fraction form
    19,675.80/29,513.70 = 18,910.35/x
  3. Step 3: Cross multiply
    19,675.80x = 29,513.70 × 18,910.35
  4. Step 4: Simplify right side
    19,675.80x = 558,114,396.80
  5. Step 5: Solve for x
    x = 558,114,396.80/19,675.80
  6. Step 6: Final answer
    x = 28,365.53

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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.