Home / 21,993.19-30,349.84-13,035.37

Finding the Fourth Proportional to 21,993.19, 30,349.84 and 13,035.37

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Solution

The fourth proportional to 21,993.19, 30,349.84 and 13,035.37 is: 17,988.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,993.19 : 30,349.84 = 13,035.37 : x
  2. Step 2: Convert to fraction form
    21,993.19/30,349.84 = 13,035.37/x
  3. Step 3: Cross multiply
    21,993.19x = 30,349.84 × 13,035.37
  4. Step 4: Simplify right side
    21,993.19x = 395,621,393.84
  5. Step 5: Solve for x
    x = 395,621,393.84/21,993.19
  6. Step 6: Final answer
    x = 17,988.36

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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.