Home / 13,622.01-20,431.49-3,762.69

Finding the Fourth Proportional to 13,622.01, 20,431.49 and 3,762.69

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Solution

The fourth proportional to 13,622.01, 20,431.49 and 3,762.69 is: 5,643.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.01 : 20,431.49 = 3,762.69 : x
  2. Step 2: Convert to fraction form
    13,622.01/20,431.49 = 3,762.69/x
  3. Step 3: Cross multiply
    13,622.01x = 20,431.49 × 3,762.69
  4. Step 4: Simplify right side
    13,622.01x = 76,877,344.29
  5. Step 5: Solve for x
    x = 76,877,344.29/13,622.01
  6. Step 6: Final answer
    x = 5,643.61

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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.