Home / 19,228.89-28,843.20-10,348.40

Finding the Fourth Proportional to 19,228.89, 28,843.20 and 10,348.40

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Solution

The fourth proportional to 19,228.89, 28,843.20 and 10,348.40 is: 15,522.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,228.89 : 28,843.20 = 10,348.40 : x
  2. Step 2: Convert to fraction form
    19,228.89/28,843.20 = 10,348.40/x
  3. Step 3: Cross multiply
    19,228.89x = 28,843.20 × 10,348.40
  4. Step 4: Simplify right side
    19,228.89x = 298,480,863.41
  5. Step 5: Solve for x
    x = 298,480,863.41/19,228.89
  6. Step 6: Final answer
    x = 15,522.52

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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.