Home / 28,561.74-42,768.81-19,704.39

Finding the Fourth Proportional to 28,561.74, 42,768.81 and 19,704.39

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Solution

The fourth proportional to 28,561.74, 42,768.81 and 19,704.39 is: 29,505.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,561.74 : 42,768.81 = 19,704.39 : x
  2. Step 2: Convert to fraction form
    28,561.74/42,768.81 = 19,704.39/x
  3. Step 3: Cross multiply
    28,561.74x = 42,768.81 × 19,704.39
  4. Step 4: Simplify right side
    28,561.74x = 842,733,312.08
  5. Step 5: Solve for x
    x = 842,733,312.08/28,561.74
  6. Step 6: Final answer
    x = 29,505.67

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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.