Home / 29,128.66-43,656.33-12,468.98

Finding the Fourth Proportional to 29,128.66, 43,656.33 and 12,468.98

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Solution

The fourth proportional to 29,128.66, 43,656.33 and 12,468.98 is: 18,687.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,128.66 : 43,656.33 = 12,468.98 : x
  2. Step 2: Convert to fraction form
    29,128.66/43,656.33 = 12,468.98/x
  3. Step 3: Cross multiply
    29,128.66x = 43,656.33 × 12,468.98
  4. Step 4: Simplify right side
    29,128.66x = 544,349,905.64
  5. Step 5: Solve for x
    x = 544,349,905.64/29,128.66
  6. Step 6: Final answer
    x = 18,687.78

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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.