Home / 14,486.40-21,731.31-5,124.48

Finding the Fourth Proportional to 14,486.40, 21,731.31 and 5,124.48

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Solution

The fourth proportional to 14,486.40, 21,731.31 and 5,124.48 is: 7,687.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,486.40 : 21,731.31 = 5,124.48 : x
  2. Step 2: Convert to fraction form
    14,486.40/21,731.31 = 5,124.48/x
  3. Step 3: Cross multiply
    14,486.40x = 21,731.31 × 5,124.48
  4. Step 4: Simplify right side
    14,486.40x = 111,361,663.47
  5. Step 5: Solve for x
    x = 111,361,663.47/14,486.40
  6. Step 6: Final answer
    x = 7,687.32

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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.