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Finding the Fourth Proportional to 30,440.64, 45,668.22 and 9,664.16

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Solution

The fourth proportional to 30,440.64, 45,668.22 and 9,664.16 is: 14,498.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,440.64 : 45,668.22 = 9,664.16 : x
  2. Step 2: Convert to fraction form
    30,440.64/45,668.22 = 9,664.16/x
  3. Step 3: Cross multiply
    30,440.64x = 45,668.22 × 9,664.16
  4. Step 4: Simplify right side
    30,440.64x = 441,344,985.00
  5. Step 5: Solve for x
    x = 441,344,985.00/30,440.64
  6. Step 6: Final answer
    x = 14,498.54

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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.