Home / 20,301.54-30,457.51-8,451.37

Finding the Fourth Proportional to 20,301.54, 30,457.51 and 8,451.37

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Solution

The fourth proportional to 20,301.54, 30,457.51 and 8,451.37 is: 12,679.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.54 : 30,457.51 = 8,451.37 : x
  2. Step 2: Convert to fraction form
    20,301.54/30,457.51 = 8,451.37/x
  3. Step 3: Cross multiply
    20,301.54x = 30,457.51 × 8,451.37
  4. Step 4: Simplify right side
    20,301.54x = 257,407,771.66
  5. Step 5: Solve for x
    x = 257,407,771.66/20,301.54
  6. Step 6: Final answer
    x = 12,679.22

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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.