Home / 20,669.18-28,525.86-11,597.02

Finding the Fourth Proportional to 20,669.18, 28,525.86 and 11,597.02

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Solution

The fourth proportional to 20,669.18, 28,525.86 and 11,597.02 is: 16,005.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669.18 : 28,525.86 = 11,597.02 : x
  2. Step 2: Convert to fraction form
    20,669.18/28,525.86 = 11,597.02/x
  3. Step 3: Cross multiply
    20,669.18x = 28,525.86 × 11,597.02
  4. Step 4: Simplify right side
    20,669.18x = 330,814,968.94
  5. Step 5: Solve for x
    x = 330,814,968.94/20,669.18
  6. Step 6: Final answer
    x = 16,005.23

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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.