Home / 18,911.36-26,084.40-16,389.04

Finding the Fourth Proportional to 18,911.36, 26,084.40 and 16,389.04

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Solution

The fourth proportional to 18,911.36, 26,084.40 and 16,389.04 is: 22,605.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911.36 : 26,084.40 = 16,389.04 : x
  2. Step 2: Convert to fraction form
    18,911.36/26,084.40 = 16,389.04/x
  3. Step 3: Cross multiply
    18,911.36x = 26,084.40 × 16,389.04
  4. Step 4: Simplify right side
    18,911.36x = 427,498,274.98
  5. Step 5: Solve for x
    x = 427,498,274.98/18,911.36
  6. Step 6: Final answer
    x = 22,605.37

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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.