Home / 22,307.04-30,783.72-12,235.20

Finding the Fourth Proportional to 22,307.04, 30,783.72 and 12,235.20

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Solution

The fourth proportional to 22,307.04, 30,783.72 and 12,235.20 is: 16,884.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,307.04 : 30,783.72 = 12,235.20 : x
  2. Step 2: Convert to fraction form
    22,307.04/30,783.72 = 12,235.20/x
  3. Step 3: Cross multiply
    22,307.04x = 30,783.72 × 12,235.20
  4. Step 4: Simplify right side
    22,307.04x = 376,644,970.94
  5. Step 5: Solve for x
    x = 376,644,970.94/22,307.04
  6. Step 6: Final answer
    x = 16,884.58

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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.