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Finding the Fourth Proportional to 19,089.42, 28,634.11 and 10,341.42

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Solution

The fourth proportional to 19,089.42, 28,634.11 and 10,341.42 is: 15,512.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,089.42 : 28,634.11 = 10,341.42 : x
  2. Step 2: Convert to fraction form
    19,089.42/28,634.11 = 10,341.42/x
  3. Step 3: Cross multiply
    19,089.42x = 28,634.11 × 10,341.42
  4. Step 4: Simplify right side
    19,089.42x = 296,117,357.84
  5. Step 5: Solve for x
    x = 296,117,357.84/19,089.42
  6. Step 6: Final answer
    x = 15,512.12

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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.