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Finding the Fourth Proportional to 30,573.53, 45,857.22 and 8,389.14

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Solution

The fourth proportional to 30,573.53, 45,857.22 and 8,389.14 is: 12,582.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,573.53 : 45,857.22 = 8,389.14 : x
  2. Step 2: Convert to fraction form
    30,573.53/45,857.22 = 8,389.14/x
  3. Step 3: Cross multiply
    30,573.53x = 45,857.22 × 8,389.14
  4. Step 4: Simplify right side
    30,573.53x = 384,702,638.59
  5. Step 5: Solve for x
    x = 384,702,638.59/30,573.53
  6. Step 6: Final answer
    x = 12,582.87

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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.