Home / 19,539.85-29,290.32-11,209.81

Finding the Fourth Proportional to 19,539.85, 29,290.32 and 11,209.81

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Solution

The fourth proportional to 19,539.85, 29,290.32 and 11,209.81 is: 16,803.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,539.85 : 29,290.32 = 11,209.81 : x
  2. Step 2: Convert to fraction form
    19,539.85/29,290.32 = 11,209.81/x
  3. Step 3: Cross multiply
    19,539.85x = 29,290.32 × 11,209.81
  4. Step 4: Simplify right side
    19,539.85x = 328,338,922.04
  5. Step 5: Solve for x
    x = 328,338,922.04/19,539.85
  6. Step 6: Final answer
    x = 16,803.55

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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.