Home / 28,942-43,418.64-12,301.84

Finding the Fourth Proportional to 28,942, 43,418.64 and 12,301.84

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Solution

The fourth proportional to 28,942, 43,418.64 and 12,301.84 is: 18,455.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,942 : 43,418.64 = 12,301.84 : x
  2. Step 2: Convert to fraction form
    28,942/43,418.64 = 12,301.84/x
  3. Step 3: Cross multiply
    28,942x = 43,418.64 × 12,301.84
  4. Step 4: Simplify right side
    28,942x = 534,129,162.30
  5. Step 5: Solve for x
    x = 534,129,162.30/28,942
  6. Step 6: Final answer
    x = 18,455.16

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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.