Home / 21,954.51-30,297.96-13,454.99

Finding the Fourth Proportional to 21,954.51, 30,297.96 and 13,454.99

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Solution

The fourth proportional to 21,954.51, 30,297.96 and 13,454.99 is: 18,568.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,954.51 : 30,297.96 = 13,454.99 : x
  2. Step 2: Convert to fraction form
    21,954.51/30,297.96 = 13,454.99/x
  3. Step 3: Cross multiply
    21,954.51x = 30,297.96 × 13,454.99
  4. Step 4: Simplify right side
    21,954.51x = 407,658,748.82
  5. Step 5: Solve for x
    x = 407,658,748.82/21,954.51
  6. Step 6: Final answer
    x = 18,568.34

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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.