Home / 21,800.21-30,093.43-14,736.20

Finding the Fourth Proportional to 21,800.21, 30,093.43 and 14,736.20

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Solution

The fourth proportional to 21,800.21, 30,093.43 and 14,736.20 is: 20,342.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,800.21 : 30,093.43 = 14,736.20 : x
  2. Step 2: Convert to fraction form
    21,800.21/30,093.43 = 14,736.20/x
  3. Step 3: Cross multiply
    21,800.21x = 30,093.43 × 14,736.20
  4. Step 4: Simplify right side
    21,800.21x = 443,462,615.86
  5. Step 5: Solve for x
    x = 443,462,615.86/21,800.21
  6. Step 6: Final answer
    x = 20,342.13

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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.