Home / 31,145.47-46,724.36-11,424.21

Finding the Fourth Proportional to 31,145.47, 46,724.36 and 11,424.21

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Solution

The fourth proportional to 31,145.47, 46,724.36 and 11,424.21 is: 17,138.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,145.47 : 46,724.36 = 11,424.21 : x
  2. Step 2: Convert to fraction form
    31,145.47/46,724.36 = 11,424.21/x
  3. Step 3: Cross multiply
    31,145.47x = 46,724.36 × 11,424.21
  4. Step 4: Simplify right side
    31,145.47x = 533,788,900.76
  5. Step 5: Solve for x
    x = 533,788,900.76/31,145.47
  6. Step 6: Final answer
    x = 17,138.57

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.