Home / 28,662.19-43,009.89-12,020.74

Finding the Fourth Proportional to 28,662.19, 43,009.89 and 12,020.74

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Solution

The fourth proportional to 28,662.19, 43,009.89 and 12,020.74 is: 18,038.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,662.19 : 43,009.89 = 12,020.74 : x
  2. Step 2: Convert to fraction form
    28,662.19/43,009.89 = 12,020.74/x
  3. Step 3: Cross multiply
    28,662.19x = 43,009.89 × 12,020.74
  4. Step 4: Simplify right side
    28,662.19x = 517,010,705.12
  5. Step 5: Solve for x
    x = 517,010,705.12/28,662.19
  6. Step 6: Final answer
    x = 18,038.07

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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.