Home / 28,579.45-39,439.60-16,004.29

Finding the Fourth Proportional to 28,579.45, 39,439.60 and 16,004.29

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Solution

The fourth proportional to 28,579.45, 39,439.60 and 16,004.29 is: 22,085.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,579.45 : 39,439.60 = 16,004.29 : x
  2. Step 2: Convert to fraction form
    28,579.45/39,439.60 = 16,004.29/x
  3. Step 3: Cross multiply
    28,579.45x = 39,439.60 × 16,004.29
  4. Step 4: Simplify right side
    28,579.45x = 631,202,795.88
  5. Step 5: Solve for x
    x = 631,202,795.88/28,579.45
  6. Step 6: Final answer
    x = 22,085.90

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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.