Home / 39,990.70-59,946.27-18,893.37

Finding the Fourth Proportional to 39,990.70, 59,946.27 and 18,893.37

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Solution

The fourth proportional to 39,990.70, 59,946.27 and 18,893.37 is: 28,321.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,990.70 : 59,946.27 = 18,893.37 : x
  2. Step 2: Convert to fraction form
    39,990.70/59,946.27 = 18,893.37/x
  3. Step 3: Cross multiply
    39,990.70x = 59,946.27 × 18,893.37
  4. Step 4: Simplify right side
    39,990.70x = 1,132,587,225.31
  5. Step 5: Solve for x
    x = 1,132,587,225.31/39,990.70
  6. Step 6: Final answer
    x = 28,321.26

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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.