Home / 20,566.64-30,647.63-19,896.87

Finding the Fourth Proportional to 20,566.64, 30,647.63 and 19,896.87

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Solution

The fourth proportional to 20,566.64, 30,647.63 and 19,896.87 is: 29,649.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,566.64 : 30,647.63 = 19,896.87 : x
  2. Step 2: Convert to fraction form
    20,566.64/30,647.63 = 19,896.87/x
  3. Step 3: Cross multiply
    20,566.64x = 30,647.63 × 19,896.87
  4. Step 4: Simplify right side
    20,566.64x = 609,792,074.59
  5. Step 5: Solve for x
    x = 609,792,074.59/20,566.64
  6. Step 6: Final answer
    x = 29,649.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.