Home / 31,491.36-47,236.29-12,766.38

Finding the Fourth Proportional to 31,491.36, 47,236.29 and 12,766.38

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Solution

The fourth proportional to 31,491.36, 47,236.29 and 12,766.38 is: 19,149.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,491.36 : 47,236.29 = 12,766.38 : x
  2. Step 2: Convert to fraction form
    31,491.36/47,236.29 = 12,766.38/x
  3. Step 3: Cross multiply
    31,491.36x = 47,236.29 × 12,766.38
  4. Step 4: Simplify right side
    31,491.36x = 603,036,427.93
  5. Step 5: Solve for x
    x = 603,036,427.93/31,491.36
  6. Step 6: Final answer
    x = 19,149.27

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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.