Home / 43,647.45-65,416.40-18,658.13

Finding the Fourth Proportional to 43,647.45, 65,416.40 and 18,658.13

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Solution

The fourth proportional to 43,647.45, 65,416.40 and 18,658.13 is: 27,963.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,647.45 : 65,416.40 = 18,658.13 : x
  2. Step 2: Convert to fraction form
    43,647.45/65,416.40 = 18,658.13/x
  3. Step 3: Cross multiply
    43,647.45x = 65,416.40 × 18,658.13
  4. Step 4: Simplify right side
    43,647.45x = 1,220,547,548.67
  5. Step 5: Solve for x
    x = 1,220,547,548.67/43,647.45
  6. Step 6: Final answer
    x = 27,963.78

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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.