Home / 28,838.16-43,241.04-9,121.68

Finding the Fourth Proportional to 28,838.16, 43,241.04 and 9,121.68

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Solution

The fourth proportional to 28,838.16, 43,241.04 and 9,121.68 is: 13,677.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,838.16 : 43,241.04 = 9,121.68 : x
  2. Step 2: Convert to fraction form
    28,838.16/43,241.04 = 9,121.68/x
  3. Step 3: Cross multiply
    28,838.16x = 43,241.04 × 9,121.68
  4. Step 4: Simplify right side
    28,838.16x = 394,430,929.75
  5. Step 5: Solve for x
    x = 394,430,929.75/28,838.16
  6. Step 6: Final answer
    x = 13,677.40

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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.