Home / 47,003.80-70,489.26-18,916.56

Finding the Fourth Proportional to 47,003.80, 70,489.26 and 18,916.56

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Solution

The fourth proportional to 47,003.80, 70,489.26 and 18,916.56 is: 28,368.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,003.80 : 70,489.26 = 18,916.56 : x
  2. Step 2: Convert to fraction form
    47,003.80/70,489.26 = 18,916.56/x
  3. Step 3: Cross multiply
    47,003.80x = 70,489.26 × 18,916.56
  4. Step 4: Simplify right side
    47,003.80x = 1,333,414,316.15
  5. Step 5: Solve for x
    x = 1,333,414,316.15/47,003.80
  6. Step 6: Final answer
    x = 28,368.22

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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.