Home / 23,990.81-33,107.37-13,381.12

Finding the Fourth Proportional to 23,990.81, 33,107.37 and 13,381.12

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Solution

The fourth proportional to 23,990.81, 33,107.37 and 13,381.12 is: 18,465.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,990.81 : 33,107.37 = 13,381.12 : x
  2. Step 2: Convert to fraction form
    23,990.81/33,107.37 = 13,381.12/x
  3. Step 3: Cross multiply
    23,990.81x = 33,107.37 × 13,381.12
  4. Step 4: Simplify right side
    23,990.81x = 443,013,682.06
  5. Step 5: Solve for x
    x = 443,013,682.06/23,990.81
  6. Step 6: Final answer
    x = 18,465.98

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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.