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Finding the Fourth Proportional to 30,789.77, 46,222.92 and 21,488.94

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Solution

The fourth proportional to 30,789.77, 46,222.92 and 21,488.94 is: 32,260.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,789.77 : 46,222.92 = 21,488.94 : x
  2. Step 2: Convert to fraction form
    30,789.77/46,222.92 = 21,488.94/x
  3. Step 3: Cross multiply
    30,789.77x = 46,222.92 × 21,488.94
  4. Step 4: Simplify right side
    30,789.77x = 993,281,554.50
  5. Step 5: Solve for x
    x = 993,281,554.50/30,789.77
  6. Step 6: Final answer
    x = 32,260.12

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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.