Home / 28,946.66-43,440.74-12,318.37

Finding the Fourth Proportional to 28,946.66, 43,440.74 and 12,318.37

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Solution

The fourth proportional to 28,946.66, 43,440.74 and 12,318.37 is: 18,486.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,946.66 : 43,440.74 = 12,318.37 : x
  2. Step 2: Convert to fraction form
    28,946.66/43,440.74 = 12,318.37/x
  3. Step 3: Cross multiply
    28,946.66x = 43,440.74 × 12,318.37
  4. Step 4: Simplify right side
    28,946.66x = 535,119,030.59
  5. Step 5: Solve for x
    x = 535,119,030.59/28,946.66
  6. Step 6: Final answer
    x = 18,486.39

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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.