Home / 32,778.72-45,231.60-18,628.80

Finding the Fourth Proportional to 32,778.72, 45,231.60 and 18,628.80

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Solution

The fourth proportional to 32,778.72, 45,231.60 and 18,628.80 is: 25,706.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,778.72 : 45,231.60 = 18,628.80 : x
  2. Step 2: Convert to fraction form
    32,778.72/45,231.60 = 18,628.80/x
  3. Step 3: Cross multiply
    32,778.72x = 45,231.60 × 18,628.80
  4. Step 4: Simplify right side
    32,778.72x = 842,610,430.08
  5. Step 5: Solve for x
    x = 842,610,430.08/32,778.72
  6. Step 6: Final answer
    x = 25,706.02

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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.