Home / 28,693.22-43,042.31-7,916.72

Finding the Fourth Proportional to 28,693.22, 43,042.31 and 7,916.72

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Solution

The fourth proportional to 28,693.22, 43,042.31 and 7,916.72 is: 11,875.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,693.22 : 43,042.31 = 7,916.72 : x
  2. Step 2: Convert to fraction form
    28,693.22/43,042.31 = 7,916.72/x
  3. Step 3: Cross multiply
    28,693.22x = 43,042.31 × 7,916.72
  4. Step 4: Simplify right side
    28,693.22x = 340,754,043.82
  5. Step 5: Solve for x
    x = 340,754,043.82/28,693.22
  6. Step 6: Final answer
    x = 11,875.77

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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.