Home / 40,817.48-61,220.46-12,731

Finding the Fourth Proportional to 40,817.48, 61,220.46 and 12,731

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Solution

The fourth proportional to 40,817.48, 61,220.46 and 12,731 is: 19,094.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,817.48 : 61,220.46 = 12,731 : x
  2. Step 2: Convert to fraction form
    40,817.48/61,220.46 = 12,731/x
  3. Step 3: Cross multiply
    40,817.48x = 61,220.46 × 12,731
  4. Step 4: Simplify right side
    40,817.48x = 779,397,676.26
  5. Step 5: Solve for x
    x = 779,397,676.26/40,817.48
  6. Step 6: Final answer
    x = 19,094.70

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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.