Home / 15,919.20-23,877.43-5,389.00

Finding the Fourth Proportional to 15,919.20, 23,877.43 and 5,389.00

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Solution

The fourth proportional to 15,919.20, 23,877.43 and 5,389.00 is: 8,083.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,919.20 : 23,877.43 = 5,389.00 : x
  2. Step 2: Convert to fraction form
    15,919.20/23,877.43 = 5,389.00/x
  3. Step 3: Cross multiply
    15,919.20x = 23,877.43 × 5,389.00
  4. Step 4: Simplify right side
    15,919.20x = 128,675,397.10
  5. Step 5: Solve for x
    x = 128,675,397.10/15,919.20
  6. Step 6: Final answer
    x = 8,083.03

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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.