Home / 21,620.53-29,820.58-16,527.56

Finding the Fourth Proportional to 21,620.53, 29,820.58 and 16,527.56

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Solution

The fourth proportional to 21,620.53, 29,820.58 and 16,527.56 is: 22,795.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,620.53 : 29,820.58 = 16,527.56 : x
  2. Step 2: Convert to fraction form
    21,620.53/29,820.58 = 16,527.56/x
  3. Step 3: Cross multiply
    21,620.53x = 29,820.58 × 16,527.56
  4. Step 4: Simplify right side
    21,620.53x = 492,861,425.18
  5. Step 5: Solve for x
    x = 492,861,425.18/21,620.53
  6. Step 6: Final answer
    x = 22,795.99

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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.