Home / 43,143.79-64,688.82-18,170.95

Finding the Fourth Proportional to 43,143.79, 64,688.82 and 18,170.95

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Solution

The fourth proportional to 43,143.79, 64,688.82 and 18,170.95 is: 27,245.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,143.79 : 64,688.82 = 18,170.95 : x
  2. Step 2: Convert to fraction form
    43,143.79/64,688.82 = 18,170.95/x
  3. Step 3: Cross multiply
    43,143.79x = 64,688.82 × 18,170.95
  4. Step 4: Simplify right side
    43,143.79x = 1,175,457,313.78
  5. Step 5: Solve for x
    x = 1,175,457,313.78/43,143.79
  6. Step 6: Final answer
    x = 27,245.11

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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.