Home / 21,059.45-31,561.86-8,564.93

Finding the Fourth Proportional to 21,059.45, 31,561.86 and 8,564.93

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Solution

The fourth proportional to 21,059.45, 31,561.86 and 8,564.93 is: 12,836.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059.45 : 31,561.86 = 8,564.93 : x
  2. Step 2: Convert to fraction form
    21,059.45/31,561.86 = 8,564.93/x
  3. Step 3: Cross multiply
    21,059.45x = 31,561.86 × 8,564.93
  4. Step 4: Simplify right side
    21,059.45x = 270,325,121.57
  5. Step 5: Solve for x
    x = 270,325,121.57/21,059.45
  6. Step 6: Final answer
    x = 12,836.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.