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Finding the Fourth Proportional to 43,656.84, 65,485.24 and 12,492.08

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Solution

The fourth proportional to 43,656.84, 65,485.24 and 12,492.08 is: 18,738.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,656.84 : 65,485.24 = 12,492.08 : x
  2. Step 2: Convert to fraction form
    43,656.84/65,485.24 = 12,492.08/x
  3. Step 3: Cross multiply
    43,656.84x = 65,485.24 × 12,492.08
  4. Step 4: Simplify right side
    43,656.84x = 818,046,856.90
  5. Step 5: Solve for x
    x = 818,046,856.90/43,656.84
  6. Step 6: Final answer
    x = 18,738.11

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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.