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Finding the Fourth Proportional to 30,245.62, 45,302.78 and 14,630.50

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Solution

The fourth proportional to 30,245.62, 45,302.78 and 14,630.50 is: 21,913.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,245.62 : 45,302.78 = 14,630.50 : x
  2. Step 2: Convert to fraction form
    30,245.62/45,302.78 = 14,630.50/x
  3. Step 3: Cross multiply
    30,245.62x = 45,302.78 × 14,630.50
  4. Step 4: Simplify right side
    30,245.62x = 662,802,322.79
  5. Step 5: Solve for x
    x = 662,802,322.79/30,245.62
  6. Step 6: Final answer
    x = 21,913.99

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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.