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Finding the Fourth Proportional to 22,394.34, 30,907.98 and 12,968.64

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Solution

The fourth proportional to 22,394.34, 30,907.98 and 12,968.64 is: 17,898.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,394.34 : 30,907.98 = 12,968.64 : x
  2. Step 2: Convert to fraction form
    22,394.34/30,907.98 = 12,968.64/x
  3. Step 3: Cross multiply
    22,394.34x = 30,907.98 × 12,968.64
  4. Step 4: Simplify right side
    22,394.34x = 400,834,465.75
  5. Step 5: Solve for x
    x = 400,834,465.75/22,394.34
  6. Step 6: Final answer
    x = 17,898.92

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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.