Home / 22,307.20-30,784.32-12,235.60

Finding the Fourth Proportional to 22,307.20, 30,784.32 and 12,235.60

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Solution

The fourth proportional to 22,307.20, 30,784.32 and 12,235.60 is: 16,885.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,307.20 : 30,784.32 = 12,235.60 : x
  2. Step 2: Convert to fraction form
    22,307.20/30,784.32 = 12,235.60/x
  3. Step 3: Cross multiply
    22,307.20x = 30,784.32 × 12,235.60
  4. Step 4: Simplify right side
    22,307.20x = 376,664,625.79
  5. Step 5: Solve for x
    x = 376,664,625.79/22,307.20
  6. Step 6: Final answer
    x = 16,885.34

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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.