Home / 31,159.66-46,724.36-14,515.78

Finding the Fourth Proportional to 31,159.66, 46,724.36 and 14,515.78

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Solution

The fourth proportional to 31,159.66, 46,724.36 and 14,515.78 is: 21,766.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,159.66 : 46,724.36 = 14,515.78 : x
  2. Step 2: Convert to fraction form
    31,159.66/46,724.36 = 14,515.78/x
  3. Step 3: Cross multiply
    31,159.66x = 46,724.36 × 14,515.78
  4. Step 4: Simplify right side
    31,159.66x = 678,240,530.40
  5. Step 5: Solve for x
    x = 678,240,530.40/31,159.66
  6. Step 6: Final answer
    x = 21,766.62

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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.