Home / 38,998.20-58,497.30-12,703.80

Finding the Fourth Proportional to 38,998.20, 58,497.30 and 12,703.80

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Solution

The fourth proportional to 38,998.20, 58,497.30 and 12,703.80 is: 19,055.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,998.20 : 58,497.30 = 12,703.80 : x
  2. Step 2: Convert to fraction form
    38,998.20/58,497.30 = 12,703.80/x
  3. Step 3: Cross multiply
    38,998.20x = 58,497.30 × 12,703.80
  4. Step 4: Simplify right side
    38,998.20x = 743,137,999.74
  5. Step 5: Solve for x
    x = 743,137,999.74/38,998.20
  6. Step 6: Final answer
    x = 19,055.70

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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.