Home / 35,890.90-49,532.29-20,783.81

Finding the Fourth Proportional to 35,890.90, 49,532.29 and 20,783.81

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Solution

The fourth proportional to 35,890.90, 49,532.29 and 20,783.81 is: 28,683.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,890.90 : 49,532.29 = 20,783.81 : x
  2. Step 2: Convert to fraction form
    35,890.90/49,532.29 = 20,783.81/x
  3. Step 3: Cross multiply
    35,890.90x = 49,532.29 × 20,783.81
  4. Step 4: Simplify right side
    35,890.90x = 1,029,469,776.10
  5. Step 5: Solve for x
    x = 1,029,469,776.10/35,890.90
  6. Step 6: Final answer
    x = 28,683.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.