Home / 19,081.51-28,617.18-13,518.43

Finding the Fourth Proportional to 19,081.51, 28,617.18 and 13,518.43

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Solution

The fourth proportional to 19,081.51, 28,617.18 and 13,518.43 is: 20,274.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,081.51 : 28,617.18 = 13,518.43 : x
  2. Step 2: Convert to fraction form
    19,081.51/28,617.18 = 13,518.43/x
  3. Step 3: Cross multiply
    19,081.51x = 28,617.18 × 13,518.43
  4. Step 4: Simplify right side
    19,081.51x = 386,859,344.63
  5. Step 5: Solve for x
    x = 386,859,344.63/19,081.51
  6. Step 6: Final answer
    x = 20,274.04

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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.