Home / 43,911.22-65,866.88-20,554.06

Finding the Fourth Proportional to 43,911.22, 65,866.88 and 20,554.06

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Solution

The fourth proportional to 43,911.22, 65,866.88 and 20,554.06 is: 30,831.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,911.22 : 65,866.88 = 20,554.06 : x
  2. Step 2: Convert to fraction form
    43,911.22/65,866.88 = 20,554.06/x
  3. Step 3: Cross multiply
    43,911.22x = 65,866.88 × 20,554.06
  4. Step 4: Simplify right side
    43,911.22x = 1,353,831,803.53
  5. Step 5: Solve for x
    x = 1,353,831,803.53/43,911.22
  6. Step 6: Final answer
    x = 30,831.11

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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.