Home / 40,912.70-61,368.99-12,835.21

Finding the Fourth Proportional to 40,912.70, 61,368.99 and 12,835.21

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Solution

The fourth proportional to 40,912.70, 61,368.99 and 12,835.21 is: 19,252.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,912.70 : 61,368.99 = 12,835.21 : x
  2. Step 2: Convert to fraction form
    40,912.70/61,368.99 = 12,835.21/x
  3. Step 3: Cross multiply
    40,912.70x = 61,368.99 × 12,835.21
  4. Step 4: Simplify right side
    40,912.70x = 787,683,859.85
  5. Step 5: Solve for x
    x = 787,683,859.85/40,912.70
  6. Step 6: Final answer
    x = 19,252.80

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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.