Home / 19,267.80-28,918.16-13,734.68

Finding the Fourth Proportional to 19,267.80, 28,918.16 and 13,734.68

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Solution

The fourth proportional to 19,267.80, 28,918.16 and 13,734.68 is: 20,613.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,267.80 : 28,918.16 = 13,734.68 : x
  2. Step 2: Convert to fraction form
    19,267.80/28,918.16 = 13,734.68/x
  3. Step 3: Cross multiply
    19,267.80x = 28,918.16 × 13,734.68
  4. Step 4: Simplify right side
    19,267.80x = 397,181,673.79
  5. Step 5: Solve for x
    x = 397,181,673.79/19,267.80
  6. Step 6: Final answer
    x = 20,613.75

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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.