Home / 21,884.64-30,189.68-14,808.48

Finding the Fourth Proportional to 21,884.64, 30,189.68 and 14,808.48

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Solution

The fourth proportional to 21,884.64, 30,189.68 and 14,808.48 is: 20,428.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,884.64 : 30,189.68 = 14,808.48 : x
  2. Step 2: Convert to fraction form
    21,884.64/30,189.68 = 14,808.48/x
  3. Step 3: Cross multiply
    21,884.64x = 30,189.68 × 14,808.48
  4. Step 4: Simplify right side
    21,884.64x = 447,063,272.49
  5. Step 5: Solve for x
    x = 447,063,272.49/21,884.64
  6. Step 6: Final answer
    x = 20,428.18

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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.