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Finding the Fourth Proportional to 30,292.68, 45,416.84 and 14,276.76

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Solution

The fourth proportional to 30,292.68, 45,416.84 and 14,276.76 is: 21,404.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,292.68 : 45,416.84 = 14,276.76 : x
  2. Step 2: Convert to fraction form
    30,292.68/45,416.84 = 14,276.76/x
  3. Step 3: Cross multiply
    30,292.68x = 45,416.84 × 14,276.76
  4. Step 4: Simplify right side
    30,292.68x = 648,405,324.64
  5. Step 5: Solve for x
    x = 648,405,324.64/30,292.68
  6. Step 6: Final answer
    x = 21,404.69

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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.