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Finding the Fourth Proportional to 30,870.52, 46,299.52 and 8,684.92

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Solution

The fourth proportional to 30,870.52, 46,299.52 and 8,684.92 is: 13,025.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,870.52 : 46,299.52 = 8,684.92 : x
  2. Step 2: Convert to fraction form
    30,870.52/46,299.52 = 8,684.92/x
  3. Step 3: Cross multiply
    30,870.52x = 46,299.52 × 8,684.92
  4. Step 4: Simplify right side
    30,870.52x = 402,107,627.24
  5. Step 5: Solve for x
    x = 402,107,627.24/30,870.52
  6. Step 6: Final answer
    x = 13,025.62

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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.