Home / 28,660.58-42,984.44-12,039.38

Finding the Fourth Proportional to 28,660.58, 42,984.44 and 12,039.38

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Solution

The fourth proportional to 28,660.58, 42,984.44 and 12,039.38 is: 18,056.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660.58 : 42,984.44 = 12,039.38 : x
  2. Step 2: Convert to fraction form
    28,660.58/42,984.44 = 12,039.38/x
  3. Step 3: Cross multiply
    28,660.58x = 42,984.44 × 12,039.38
  4. Step 4: Simplify right side
    28,660.58x = 517,506,007.25
  5. Step 5: Solve for x
    x = 517,506,007.25/28,660.58
  6. Step 6: Final answer
    x = 18,056.37

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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.