Home / 23,230.61-34,670.36-20,988.60

Finding the Fourth Proportional to 23,230.61, 34,670.36 and 20,988.60

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Solution

The fourth proportional to 23,230.61, 34,670.36 and 20,988.60 is: 31,324.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,230.61 : 34,670.36 = 20,988.60 : x
  2. Step 2: Convert to fraction form
    23,230.61/34,670.36 = 20,988.60/x
  3. Step 3: Cross multiply
    23,230.61x = 34,670.36 × 20,988.60
  4. Step 4: Simplify right side
    23,230.61x = 727,682,370.37
  5. Step 5: Solve for x
    x = 727,682,370.37/23,230.61
  6. Step 6: Final answer
    x = 31,324.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.