Home / 43,172.84-64,760.48-12,008.09

Finding the Fourth Proportional to 43,172.84, 64,760.48 and 12,008.09

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Solution

The fourth proportional to 43,172.84, 64,760.48 and 12,008.09 is: 18,012.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,172.84 : 64,760.48 = 12,008.09 : x
  2. Step 2: Convert to fraction form
    43,172.84/64,760.48 = 12,008.09/x
  3. Step 3: Cross multiply
    43,172.84x = 64,760.48 × 12,008.09
  4. Step 4: Simplify right side
    43,172.84x = 777,649,672.28
  5. Step 5: Solve for x
    x = 777,649,672.28/43,172.84
  6. Step 6: Final answer
    x = 18,012.47

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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.