Home / 31,014.42-46,521.32-7,640.85

Finding the Fourth Proportional to 31,014.42, 46,521.32 and 7,640.85

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Solution

The fourth proportional to 31,014.42, 46,521.32 and 7,640.85 is: 11,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,014.42 : 46,521.32 = 7,640.85 : x
  2. Step 2: Convert to fraction form
    31,014.42/46,521.32 = 7,640.85/x
  3. Step 3: Cross multiply
    31,014.42x = 46,521.32 × 7,640.85
  4. Step 4: Simplify right side
    31,014.42x = 355,462,427.92
  5. Step 5: Solve for x
    x = 355,462,427.92/31,014.42
  6. Step 6: Final answer
    x = 11,461.20

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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.