Home / 31,113.60-46,651.62-12,396.53

Finding the Fourth Proportional to 31,113.60, 46,651.62 and 12,396.53

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Solution

The fourth proportional to 31,113.60, 46,651.62 and 12,396.53 is: 18,587.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,113.60 : 46,651.62 = 12,396.53 : x
  2. Step 2: Convert to fraction form
    31,113.60/46,651.62 = 12,396.53/x
  3. Step 3: Cross multiply
    31,113.60x = 46,651.62 × 12,396.53
  4. Step 4: Simplify right side
    31,113.60x = 578,317,973.62
  5. Step 5: Solve for x
    x = 578,317,973.62/31,113.60
  6. Step 6: Final answer
    x = 18,587.31

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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.