Home / 19,109.28-28,639.62-10,351.56

Finding the Fourth Proportional to 19,109.28, 28,639.62 and 10,351.56

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Solution

The fourth proportional to 19,109.28, 28,639.62 and 10,351.56 is: 15,514.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,109.28 : 28,639.62 = 10,351.56 : x
  2. Step 2: Convert to fraction form
    19,109.28/28,639.62 = 10,351.56/x
  3. Step 3: Cross multiply
    19,109.28x = 28,639.62 × 10,351.56
  4. Step 4: Simplify right side
    19,109.28x = 296,464,744.81
  5. Step 5: Solve for x
    x = 296,464,744.81/19,109.28
  6. Step 6: Final answer
    x = 15,514.18

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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.