Home / 28,809.56-39,768.14-19,383.59

Finding the Fourth Proportional to 28,809.56, 39,768.14 and 19,383.59

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Solution

The fourth proportional to 28,809.56, 39,768.14 and 19,383.59 is: 26,756.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,809.56 : 39,768.14 = 19,383.59 : x
  2. Step 2: Convert to fraction form
    28,809.56/39,768.14 = 19,383.59/x
  3. Step 3: Cross multiply
    28,809.56x = 39,768.14 × 19,383.59
  4. Step 4: Simplify right side
    28,809.56x = 770,849,468.70
  5. Step 5: Solve for x
    x = 770,849,468.70/28,809.56
  6. Step 6: Final answer
    x = 26,756.72

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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.