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Finding the Fourth Proportional to 30,004.92, 45,005.76 and 9,228.48

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Solution

The fourth proportional to 30,004.92, 45,005.76 and 9,228.48 is: 13,842.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,004.92 : 45,005.76 = 9,228.48 : x
  2. Step 2: Convert to fraction form
    30,004.92/45,005.76 = 9,228.48/x
  3. Step 3: Cross multiply
    30,004.92x = 45,005.76 × 9,228.48
  4. Step 4: Simplify right side
    30,004.92x = 415,334,756.04
  5. Step 5: Solve for x
    x = 415,334,756.04/30,004.92
  6. Step 6: Final answer
    x = 13,842.22

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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.