Home / 23,321.20-34,981.80-12,823.60

Finding the Fourth Proportional to 23,321.20, 34,981.80 and 12,823.60

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Solution

The fourth proportional to 23,321.20, 34,981.80 and 12,823.60 is: 19,235.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,321.20 : 34,981.80 = 12,823.60 : x
  2. Step 2: Convert to fraction form
    23,321.20/34,981.80 = 12,823.60/x
  3. Step 3: Cross multiply
    23,321.20x = 34,981.80 × 12,823.60
  4. Step 4: Simplify right side
    23,321.20x = 448,592,610.48
  5. Step 5: Solve for x
    x = 448,592,610.48/23,321.20
  6. Step 6: Final answer
    x = 19,235.40

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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.