Home / 18,929.84-28,358.37-10,584.55

Finding the Fourth Proportional to 18,929.84, 28,358.37 and 10,584.55

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Solution

The fourth proportional to 18,929.84, 28,358.37 and 10,584.55 is: 15,856.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.84 : 28,358.37 = 10,584.55 : x
  2. Step 2: Convert to fraction form
    18,929.84/28,358.37 = 10,584.55/x
  3. Step 3: Cross multiply
    18,929.84x = 28,358.37 × 10,584.55
  4. Step 4: Simplify right side
    18,929.84x = 300,160,514.29
  5. Step 5: Solve for x
    x = 300,160,514.29/18,929.84
  6. Step 6: Final answer
    x = 15,856.47

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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.