Home / 28,669.70-43,006.54-12,012.99

Finding the Fourth Proportional to 28,669.70, 43,006.54 and 12,012.99

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Solution

The fourth proportional to 28,669.70, 43,006.54 and 12,012.99 is: 18,020.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,669.70 : 43,006.54 = 12,012.99 : x
  2. Step 2: Convert to fraction form
    28,669.70/43,006.54 = 12,012.99/x
  3. Step 3: Cross multiply
    28,669.70x = 43,006.54 × 12,012.99
  4. Step 4: Simplify right side
    28,669.70x = 516,637,134.95
  5. Step 5: Solve for x
    x = 516,637,134.95/28,669.70
  6. Step 6: Final answer
    x = 18,020.32

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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.