Home / 19,428.54-26,815.64-12,353.58

Finding the Fourth Proportional to 19,428.54, 26,815.64 and 12,353.58

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Solution

The fourth proportional to 19,428.54, 26,815.64 and 12,353.58 is: 17,050.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.54 : 26,815.64 = 12,353.58 : x
  2. Step 2: Convert to fraction form
    19,428.54/26,815.64 = 12,353.58/x
  3. Step 3: Cross multiply
    19,428.54x = 26,815.64 × 12,353.58
  4. Step 4: Simplify right side
    19,428.54x = 331,269,153.99
  5. Step 5: Solve for x
    x = 331,269,153.99/19,428.54
  6. Step 6: Final answer
    x = 17,050.65

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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.