Home / 36,720-55,088.64-15,943.68

Finding the Fourth Proportional to 36,720, 55,088.64 and 15,943.68

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Solution

The fourth proportional to 36,720, 55,088.64 and 15,943.68 is: 23,919.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,720 : 55,088.64 = 15,943.68 : x
  2. Step 2: Convert to fraction form
    36,720/55,088.64 = 15,943.68/x
  3. Step 3: Cross multiply
    36,720x = 55,088.64 × 15,943.68
  4. Step 4: Simplify right side
    36,720x = 878,315,647.80
  5. Step 5: Solve for x
    x = 878,315,647.80/36,720
  6. Step 6: Final answer
    x = 23,919.27

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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.