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Finding the Fourth Proportional to 30,011.92, 45,047.04 and 14,440.48

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Solution

The fourth proportional to 30,011.92, 45,047.04 and 14,440.48 is: 21,674.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,011.92 : 45,047.04 = 14,440.48 : x
  2. Step 2: Convert to fraction form
    30,011.92/45,047.04 = 14,440.48/x
  3. Step 3: Cross multiply
    30,011.92x = 45,047.04 × 14,440.48
  4. Step 4: Simplify right side
    30,011.92x = 650,500,713.41
  5. Step 5: Solve for x
    x = 650,500,713.41/30,011.92
  6. Step 6: Final answer
    x = 21,674.75

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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.