Home / 43,807.90-65,704.66-12,220.11

Finding the Fourth Proportional to 43,807.90, 65,704.66 and 12,220.11

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Solution

The fourth proportional to 43,807.90, 65,704.66 and 12,220.11 is: 18,328.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,807.90 : 65,704.66 = 12,220.11 : x
  2. Step 2: Convert to fraction form
    43,807.90/65,704.66 = 12,220.11/x
  3. Step 3: Cross multiply
    43,807.90x = 65,704.66 × 12,220.11
  4. Step 4: Simplify right side
    43,807.90x = 802,918,172.71
  5. Step 5: Solve for x
    x = 802,918,172.71/43,807.90
  6. Step 6: Final answer
    x = 18,328.16

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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.