Home / 23,989.36-33,105.40-13,381.20

Finding the Fourth Proportional to 23,989.36, 33,105.40 and 13,381.20

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Solution

The fourth proportional to 23,989.36, 33,105.40 and 13,381.20 is: 18,466.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,989.36 : 33,105.40 = 13,381.20 : x
  2. Step 2: Convert to fraction form
    23,989.36/33,105.40 = 13,381.20/x
  3. Step 3: Cross multiply
    23,989.36x = 33,105.40 × 13,381.20
  4. Step 4: Simplify right side
    23,989.36x = 442,989,978.48
  5. Step 5: Solve for x
    x = 442,989,978.48/23,989.36
  6. Step 6: Final answer
    x = 18,466.10

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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.