Home / 22,784.20-34,176.30-13,990.60

Finding the Fourth Proportional to 22,784.20, 34,176.30 and 13,990.60

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Solution

The fourth proportional to 22,784.20, 34,176.30 and 13,990.60 is: 20,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,784.20 : 34,176.30 = 13,990.60 : x
  2. Step 2: Convert to fraction form
    22,784.20/34,176.30 = 13,990.60/x
  3. Step 3: Cross multiply
    22,784.20x = 34,176.30 × 13,990.60
  4. Step 4: Simplify right side
    22,784.20x = 478,146,942.78
  5. Step 5: Solve for x
    x = 478,146,942.78/22,784.20
  6. Step 6: Final answer
    x = 20,985.90

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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.