Home / 31,116.79-46,682.48-19,122.31

Finding the Fourth Proportional to 31,116.79, 46,682.48 and 19,122.31

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Solution

The fourth proportional to 31,116.79, 46,682.48 and 19,122.31 is: 28,687.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,116.79 : 46,682.48 = 19,122.31 : x
  2. Step 2: Convert to fraction form
    31,116.79/46,682.48 = 19,122.31/x
  3. Step 3: Cross multiply
    31,116.79x = 46,682.48 × 19,122.31
  4. Step 4: Simplify right side
    31,116.79x = 892,676,854.13
  5. Step 5: Solve for x
    x = 892,676,854.13/31,116.79
  6. Step 6: Final answer
    x = 28,687.95

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1.5x scale

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.