Home / 28,678.50-43,009.56-12,042.27

Finding the Fourth Proportional to 28,678.50, 43,009.56 and 12,042.27

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Solution

The fourth proportional to 28,678.50, 43,009.56 and 12,042.27 is: 18,059.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678.50 : 43,009.56 = 12,042.27 : x
  2. Step 2: Convert to fraction form
    28,678.50/43,009.56 = 12,042.27/x
  3. Step 3: Cross multiply
    28,678.50x = 43,009.56 × 12,042.27
  4. Step 4: Simplify right side
    28,678.50x = 517,932,734.10
  5. Step 5: Solve for x
    x = 517,932,734.10/28,678.50
  6. Step 6: Final answer
    x = 18,059.97

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1.5x scale

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.