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Finding the Fourth Proportional to 14,285.92, 21,429.88 and 4,423.92

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Solution

The fourth proportional to 14,285.92, 21,429.88 and 4,423.92 is: 6,636.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,285.92 : 21,429.88 = 4,423.92 : x
  2. Step 2: Convert to fraction form
    14,285.92/21,429.88 = 4,423.92/x
  3. Step 3: Cross multiply
    14,285.92x = 21,429.88 × 4,423.92
  4. Step 4: Simplify right side
    14,285.92x = 94,804,074.73
  5. Step 5: Solve for x
    x = 94,804,074.73/14,285.92
  6. Step 6: Final answer
    x = 6,636.19

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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.