Home / 18,088.86-27,128.90-4,941.30

Finding the Fourth Proportional to 18,088.86, 27,128.90 and 4,941.30

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Solution

The fourth proportional to 18,088.86, 27,128.90 and 4,941.30 is: 7,410.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,088.86 : 27,128.90 = 4,941.30 : x
  2. Step 2: Convert to fraction form
    18,088.86/27,128.90 = 4,941.30/x
  3. Step 3: Cross multiply
    18,088.86x = 27,128.90 × 4,941.30
  4. Step 4: Simplify right side
    18,088.86x = 134,052,033.57
  5. Step 5: Solve for x
    x = 134,052,033.57/18,088.86
  6. Step 6: Final answer
    x = 7,410.75

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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.