Home / 28,939.22-39,924.36-18,864.12

Finding the Fourth Proportional to 28,939.22, 39,924.36 and 18,864.12

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Solution

The fourth proportional to 28,939.22, 39,924.36 and 18,864.12 is: 26,024.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,939.22 : 39,924.36 = 18,864.12 : x
  2. Step 2: Convert to fraction form
    28,939.22/39,924.36 = 18,864.12/x
  3. Step 3: Cross multiply
    28,939.22x = 39,924.36 × 18,864.12
  4. Step 4: Simplify right side
    28,939.22x = 753,137,917.96
  5. Step 5: Solve for x
    x = 753,137,917.96/28,939.22
  6. Step 6: Final answer
    x = 26,024.82

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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.