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Finding the Fourth Proportional to 30,374.94, 41,890.16 and 19,045.67

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Solution

The fourth proportional to 30,374.94, 41,890.16 and 19,045.67 is: 26,265.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,374.94 : 41,890.16 = 19,045.67 : x
  2. Step 2: Convert to fraction form
    30,374.94/41,890.16 = 19,045.67/x
  3. Step 3: Cross multiply
    30,374.94x = 41,890.16 × 19,045.67
  4. Step 4: Simplify right side
    30,374.94x = 797,826,163.61
  5. Step 5: Solve for x
    x = 797,826,163.61/30,374.94
  6. Step 6: Final answer
    x = 26,265.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.