Home / 57,627.36-86,479.92-20,187.72

Finding the Fourth Proportional to 57,627.36, 86,479.92 and 20,187.72

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Solution

The fourth proportional to 57,627.36, 86,479.92 and 20,187.72 is: 30,295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,627.36 : 86,479.92 = 20,187.72 : x
  2. Step 2: Convert to fraction form
    57,627.36/86,479.92 = 20,187.72/x
  3. Step 3: Cross multiply
    57,627.36x = 86,479.92 × 20,187.72
  4. Step 4: Simplify right side
    57,627.36x = 1,745,832,410.58
  5. Step 5: Solve for x
    x = 1,745,832,410.58/57,627.36
  6. Step 6: Final answer
    x = 30,295.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.