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Finding the Fourth Proportional to 29,610, 40,856.22 and 18,289.26

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Solution

The fourth proportional to 29,610, 40,856.22 and 18,289.26 is: 25,235.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,610 : 40,856.22 = 18,289.26 : x
  2. Step 2: Convert to fraction form
    29,610/40,856.22 = 18,289.26/x
  3. Step 3: Cross multiply
    29,610x = 40,856.22 × 18,289.26
  4. Step 4: Simplify right side
    29,610x = 747,230,030.20
  5. Step 5: Solve for x
    x = 747,230,030.20/29,610
  6. Step 6: Final answer
    x = 25,235.73

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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.