Home / 19,399.86-29,090.57-8,866.76

Finding the Fourth Proportional to 19,399.86, 29,090.57 and 8,866.76

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Solution

The fourth proportional to 19,399.86, 29,090.57 and 8,866.76 is: 13,295.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,399.86 : 29,090.57 = 8,866.76 : x
  2. Step 2: Convert to fraction form
    19,399.86/29,090.57 = 8,866.76/x
  3. Step 3: Cross multiply
    19,399.86x = 29,090.57 × 8,866.76
  4. Step 4: Simplify right side
    19,399.86x = 257,938,912.67
  5. Step 5: Solve for x
    x = 257,938,912.67/19,399.86
  6. Step 6: Final answer
    x = 13,295.92

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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.