Home / 31,429.74-47,144.48-12,709.56

Finding the Fourth Proportional to 31,429.74, 47,144.48 and 12,709.56

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Solution

The fourth proportional to 31,429.74, 47,144.48 and 12,709.56 is: 19,064.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,429.74 : 47,144.48 = 12,709.56 : x
  2. Step 2: Convert to fraction form
    31,429.74/47,144.48 = 12,709.56/x
  3. Step 3: Cross multiply
    31,429.74x = 47,144.48 × 12,709.56
  4. Step 4: Simplify right side
    31,429.74x = 599,185,597.23
  5. Step 5: Solve for x
    x = 599,185,597.23/31,429.74
  6. Step 6: Final answer
    x = 19,064.29

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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.