Home / 29,128.05-43,685.22-12,495.93

Finding the Fourth Proportional to 29,128.05, 43,685.22 and 12,495.93

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Solution

The fourth proportional to 29,128.05, 43,685.22 and 12,495.93 is: 18,740.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,128.05 : 43,685.22 = 12,495.93 : x
  2. Step 2: Convert to fraction form
    29,128.05/43,685.22 = 12,495.93/x
  3. Step 3: Cross multiply
    29,128.05x = 43,685.22 × 12,495.93
  4. Step 4: Simplify right side
    29,128.05x = 545,887,451.15
  5. Step 5: Solve for x
    x = 545,887,451.15/29,128.05
  6. Step 6: Final answer
    x = 18,740.95

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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.