Home / 27,218.33-40,832.27-12,428.74

Finding the Fourth Proportional to 27,218.33, 40,832.27 and 12,428.74

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Solution

The fourth proportional to 27,218.33, 40,832.27 and 12,428.74 is: 18,645.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,218.33 : 40,832.27 = 12,428.74 : x
  2. Step 2: Convert to fraction form
    27,218.33/40,832.27 = 12,428.74/x
  3. Step 3: Cross multiply
    27,218.33x = 40,832.27 × 12,428.74
  4. Step 4: Simplify right side
    27,218.33x = 507,493,503.22
  5. Step 5: Solve for x
    x = 507,493,503.22/27,218.33
  6. Step 6: Final answer
    x = 18,645.29

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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.