Home / 29,820.15-41,134.62-18,622.71

Finding the Fourth Proportional to 29,820.15, 41,134.62 and 18,622.71

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Solution

The fourth proportional to 29,820.15, 41,134.62 and 18,622.71 is: 25,688.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,820.15 : 41,134.62 = 18,622.71 : x
  2. Step 2: Convert to fraction form
    29,820.15/41,134.62 = 18,622.71/x
  3. Step 3: Cross multiply
    29,820.15x = 41,134.62 × 18,622.71
  4. Step 4: Simplify right side
    29,820.15x = 766,038,099.22
  5. Step 5: Solve for x
    x = 766,038,099.22/29,820.15
  6. Step 6: Final answer
    x = 25,688.61

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1.5x scale

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.