Home / 28,604.07-39,476.12-16,667.15

Finding the Fourth Proportional to 28,604.07, 39,476.12 and 16,667.15

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Solution

The fourth proportional to 28,604.07, 39,476.12 and 16,667.15 is: 23,002.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,604.07 : 39,476.12 = 16,667.15 : x
  2. Step 2: Convert to fraction form
    28,604.07/39,476.12 = 16,667.15/x
  3. Step 3: Cross multiply
    28,604.07x = 39,476.12 × 16,667.15
  4. Step 4: Simplify right side
    28,604.07x = 657,954,132.74
  5. Step 5: Solve for x
    x = 657,954,132.74/28,604.07
  6. Step 6: Final answer
    x = 23,002.12

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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.