Home / 22,280.07-30,746.09-13,211.54

Finding the Fourth Proportional to 22,280.07, 30,746.09 and 13,211.54

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Solution

The fourth proportional to 22,280.07, 30,746.09 and 13,211.54 is: 18,231.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,280.07 : 30,746.09 = 13,211.54 : x
  2. Step 2: Convert to fraction form
    22,280.07/30,746.09 = 13,211.54/x
  3. Step 3: Cross multiply
    22,280.07x = 30,746.09 × 13,211.54
  4. Step 4: Simplify right side
    22,280.07x = 406,203,197.88
  5. Step 5: Solve for x
    x = 406,203,197.88/22,280.07
  6. Step 6: Final answer
    x = 18,231.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.