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Finding the Fourth Proportional to 30,540.47, 45,812.07 and 8,353.35

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Solution

The fourth proportional to 30,540.47, 45,812.07 and 8,353.35 is: 12,530.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,540.47 : 45,812.07 = 8,353.35 : x
  2. Step 2: Convert to fraction form
    30,540.47/45,812.07 = 8,353.35/x
  3. Step 3: Cross multiply
    30,540.47x = 45,812.07 × 8,353.35
  4. Step 4: Simplify right side
    30,540.47x = 382,684,254.93
  5. Step 5: Solve for x
    x = 382,684,254.93/30,540.47
  6. Step 6: Final answer
    x = 12,530.40

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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.