Home / 21,873.96-30,185.19-13,373.10

Finding the Fourth Proportional to 21,873.96, 30,185.19 and 13,373.10

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Solution

The fourth proportional to 21,873.96, 30,185.19 and 13,373.10 is: 18,454.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,873.96 : 30,185.19 = 13,373.10 : x
  2. Step 2: Convert to fraction form
    21,873.96/30,185.19 = 13,373.10/x
  3. Step 3: Cross multiply
    21,873.96x = 30,185.19 × 13,373.10
  4. Step 4: Simplify right side
    21,873.96x = 403,669,564.39
  5. Step 5: Solve for x
    x = 403,669,564.39/21,873.96
  6. Step 6: Final answer
    x = 18,454.34

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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.