Home / 28,106.22-38,788.80-16,007.22

Finding the Fourth Proportional to 28,106.22, 38,788.80 and 16,007.22

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Solution

The fourth proportional to 28,106.22, 38,788.80 and 16,007.22 is: 22,091.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,106.22 : 38,788.80 = 16,007.22 : x
  2. Step 2: Convert to fraction form
    28,106.22/38,788.80 = 16,007.22/x
  3. Step 3: Cross multiply
    28,106.22x = 38,788.80 × 16,007.22
  4. Step 4: Simplify right side
    28,106.22x = 620,900,661.19
  5. Step 5: Solve for x
    x = 620,900,661.19/28,106.22
  6. Step 6: Final answer
    x = 22,091.22

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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.