Home / 28,103.36-38,790.36-17,486.66

Finding the Fourth Proportional to 28,103.36, 38,790.36 and 17,486.66

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Solution

The fourth proportional to 28,103.36, 38,790.36 and 17,486.66 is: 24,136.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103.36 : 38,790.36 = 17,486.66 : x
  2. Step 2: Convert to fraction form
    28,103.36/38,790.36 = 17,486.66/x
  3. Step 3: Cross multiply
    28,103.36x = 38,790.36 × 17,486.66
  4. Step 4: Simplify right side
    28,103.36x = 678,313,836.60
  5. Step 5: Solve for x
    x = 678,313,836.60/28,103.36
  6. Step 6: Final answer
    x = 24,136.40

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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.