Home / 21,192.56-31,790.36-5,610

Finding the Fourth Proportional to 21,192.56, 31,790.36 and 5,610

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Solution

The fourth proportional to 21,192.56, 31,790.36 and 5,610 is: 8,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192.56 : 31,790.36 = 5,610 : x
  2. Step 2: Convert to fraction form
    21,192.56/31,790.36 = 5,610/x
  3. Step 3: Cross multiply
    21,192.56x = 31,790.36 × 5,610
  4. Step 4: Simplify right side
    21,192.56x = 178,343,919.60
  5. Step 5: Solve for x
    x = 178,343,919.60/21,192.56
  6. Step 6: Final answer
    x = 8,415.40

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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.