Home / 23,990.80-33,107.36-13,381.12

Finding the Fourth Proportional to 23,990.80, 33,107.36 and 13,381.12

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Solution

The fourth proportional to 23,990.80, 33,107.36 and 13,381.12 is: 18,465.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,990.80 : 33,107.36 = 13,381.12 : x
  2. Step 2: Convert to fraction form
    23,990.80/33,107.36 = 13,381.12/x
  3. Step 3: Cross multiply
    23,990.80x = 33,107.36 × 13,381.12
  4. Step 4: Simplify right side
    23,990.80x = 443,013,457.55
  5. Step 5: Solve for x
    x = 443,013,457.55/23,990.80
  6. Step 6: Final answer
    x = 18,465.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.