Home / 19,379.21-29,071.86-8,285.96

Finding the Fourth Proportional to 19,379.21, 29,071.86 and 8,285.96

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Solution

The fourth proportional to 19,379.21, 29,071.86 and 8,285.96 is: 12,430.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,379.21 : 29,071.86 = 8,285.96 : x
  2. Step 2: Convert to fraction form
    19,379.21/29,071.86 = 8,285.96/x
  3. Step 3: Cross multiply
    19,379.21x = 29,071.86 × 8,285.96
  4. Step 4: Simplify right side
    19,379.21x = 240,888,123.73
  5. Step 5: Solve for x
    x = 240,888,123.73/19,379.21
  6. Step 6: Final answer
    x = 12,430.23

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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.