Home / 20,655.63-28,504.70-11,704.84

Finding the Fourth Proportional to 20,655.63, 28,504.70 and 11,704.84

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Solution

The fourth proportional to 20,655.63, 28,504.70 and 11,704.84 is: 16,152.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,655.63 : 28,504.70 = 11,704.84 : x
  2. Step 2: Convert to fraction form
    20,655.63/28,504.70 = 11,704.84/x
  3. Step 3: Cross multiply
    20,655.63x = 28,504.70 × 11,704.84
  4. Step 4: Simplify right side
    20,655.63x = 333,642,952.75
  5. Step 5: Solve for x
    x = 333,642,952.75/20,655.63
  6. Step 6: Final answer
    x = 16,152.64

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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.