Home / 28,812.35-43,218.53-9,092.42

Finding the Fourth Proportional to 28,812.35, 43,218.53 and 9,092.42

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Solution

The fourth proportional to 28,812.35, 43,218.53 and 9,092.42 is: 13,638.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,812.35 : 43,218.53 = 9,092.42 : x
  2. Step 2: Convert to fraction form
    28,812.35/43,218.53 = 9,092.42/x
  3. Step 3: Cross multiply
    28,812.35x = 43,218.53 × 9,092.42
  4. Step 4: Simplify right side
    28,812.35x = 392,960,981.08
  5. Step 5: Solve for x
    x = 392,960,981.08/28,812.35
  6. Step 6: Final answer
    x = 13,638.63

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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.