Home / 16,431.30-22,675.14-9,358.92

Finding the Fourth Proportional to 16,431.30, 22,675.14 and 9,358.92

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Solution

The fourth proportional to 16,431.30, 22,675.14 and 9,358.92 is: 12,915.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,431.30 : 22,675.14 = 9,358.92 : x
  2. Step 2: Convert to fraction form
    16,431.30/22,675.14 = 9,358.92/x
  3. Step 3: Cross multiply
    16,431.30x = 22,675.14 × 9,358.92
  4. Step 4: Simplify right side
    16,431.30x = 212,214,821.25
  5. Step 5: Solve for x
    x = 212,214,821.25/16,431.30
  6. Step 6: Final answer
    x = 12,915.28

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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.