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Finding the Fourth Proportional to 43,795.84, 65,693.28 and 12,630.08

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Solution

The fourth proportional to 43,795.84, 65,693.28 and 12,630.08 is: 18,944.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,795.84 : 65,693.28 = 12,630.08 : x
  2. Step 2: Convert to fraction form
    43,795.84/65,693.28 = 12,630.08/x
  3. Step 3: Cross multiply
    43,795.84x = 65,693.28 × 12,630.08
  4. Step 4: Simplify right side
    43,795.84x = 829,711,381.86
  5. Step 5: Solve for x
    x = 829,711,381.86/43,795.84
  6. Step 6: Final answer
    x = 18,944.98

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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.