Home / 28,903.86-43,380.41-11,385.99

Finding the Fourth Proportional to 28,903.86, 43,380.41 and 11,385.99

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Solution

The fourth proportional to 28,903.86, 43,380.41 and 11,385.99 is: 17,088.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.86 : 43,380.41 = 11,385.99 : x
  2. Step 2: Convert to fraction form
    28,903.86/43,380.41 = 11,385.99/x
  3. Step 3: Cross multiply
    28,903.86x = 43,380.41 × 11,385.99
  4. Step 4: Simplify right side
    28,903.86x = 493,928,857.53
  5. Step 5: Solve for x
    x = 493,928,857.53/28,903.86
  6. Step 6: Final answer
    x = 17,088.68

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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.