Home / 28,875.36-43,309.20-8,100.48

Finding the Fourth Proportional to 28,875.36, 43,309.20 and 8,100.48

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Solution

The fourth proportional to 28,875.36, 43,309.20 and 8,100.48 is: 12,149.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.36 : 43,309.20 = 8,100.48 : x
  2. Step 2: Convert to fraction form
    28,875.36/43,309.20 = 8,100.48/x
  3. Step 3: Cross multiply
    28,875.36x = 43,309.20 × 8,100.48
  4. Step 4: Simplify right side
    28,875.36x = 350,825,308.42
  5. Step 5: Solve for x
    x = 350,825,308.42/28,875.36
  6. Step 6: Final answer
    x = 12,149.64

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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.