Home / 16,981.60-25,474.80-5,293.60

Finding the Fourth Proportional to 16,981.60, 25,474.80 and 5,293.60

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Solution

The fourth proportional to 16,981.60, 25,474.80 and 5,293.60 is: 7,941.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,981.60 : 25,474.80 = 5,293.60 : x
  2. Step 2: Convert to fraction form
    16,981.60/25,474.80 = 5,293.60/x
  3. Step 3: Cross multiply
    16,981.60x = 25,474.80 × 5,293.60
  4. Step 4: Simplify right side
    16,981.60x = 134,853,401.28
  5. Step 5: Solve for x
    x = 134,853,401.28/16,981.60
  6. Step 6: Final answer
    x = 7,941.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.