Home / 28,579.40-39,439.14-16,004.60

Finding the Fourth Proportional to 28,579.40, 39,439.14 and 16,004.60

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Solution

The fourth proportional to 28,579.40, 39,439.14 and 16,004.60 is: 22,086.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,579.40 : 39,439.14 = 16,004.60 : x
  2. Step 2: Convert to fraction form
    28,579.40/39,439.14 = 16,004.60/x
  3. Step 3: Cross multiply
    28,579.40x = 39,439.14 × 16,004.60
  4. Step 4: Simplify right side
    28,579.40x = 631,207,660.04
  5. Step 5: Solve for x
    x = 631,207,660.04/28,579.40
  6. Step 6: Final answer
    x = 22,086.11

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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.