Home / 43,983.36-65,990.16-12,823.20

Finding the Fourth Proportional to 43,983.36, 65,990.16 and 12,823.20

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Solution

The fourth proportional to 43,983.36, 65,990.16 and 12,823.20 is: 19,239.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,983.36 : 65,990.16 = 12,823.20 : x
  2. Step 2: Convert to fraction form
    43,983.36/65,990.16 = 12,823.20/x
  3. Step 3: Cross multiply
    43,983.36x = 65,990.16 × 12,823.20
  4. Step 4: Simplify right side
    43,983.36x = 846,205,019.71
  5. Step 5: Solve for x
    x = 846,205,019.71/43,983.36
  6. Step 6: Final answer
    x = 19,239.21

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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.