Home / 43,622.16-65,421.48-18,649.80

Finding the Fourth Proportional to 43,622.16, 65,421.48 and 18,649.80

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Solution

The fourth proportional to 43,622.16, 65,421.48 and 18,649.80 is: 27,969.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,622.16 : 65,421.48 = 18,649.80 : x
  2. Step 2: Convert to fraction form
    43,622.16/65,421.48 = 18,649.80/x
  3. Step 3: Cross multiply
    43,622.16x = 65,421.48 × 18,649.80
  4. Step 4: Simplify right side
    43,622.16x = 1,220,097,517.70
  5. Step 5: Solve for x
    x = 1,220,097,517.70/43,622.16
  6. Step 6: Final answer
    x = 27,969.67

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1.5x scale

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.