Home / 27,218.53-40,832.58-12,428.94

Finding the Fourth Proportional to 27,218.53, 40,832.58 and 12,428.94

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Solution

The fourth proportional to 27,218.53, 40,832.58 and 12,428.94 is: 18,645.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,218.53 : 40,832.58 = 12,428.94 : x
  2. Step 2: Convert to fraction form
    27,218.53/40,832.58 = 12,428.94/x
  3. Step 3: Cross multiply
    27,218.53x = 40,832.58 × 12,428.94
  4. Step 4: Simplify right side
    27,218.53x = 507,505,686.87
  5. Step 5: Solve for x
    x = 507,505,686.87/27,218.53
  6. Step 6: Final answer
    x = 18,645.59

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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.