Home / 43,172.88-64,762.98-12,008.13

Finding the Fourth Proportional to 43,172.88, 64,762.98 and 12,008.13

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Solution

The fourth proportional to 43,172.88, 64,762.98 and 12,008.13 is: 18,013.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,172.88 : 64,762.98 = 12,008.13 : x
  2. Step 2: Convert to fraction form
    43,172.88/64,762.98 = 12,008.13/x
  3. Step 3: Cross multiply
    43,172.88x = 64,762.98 × 12,008.13
  4. Step 4: Simplify right side
    43,172.88x = 777,682,283.03
  5. Step 5: Solve for x
    x = 777,682,283.03/43,172.88
  6. Step 6: Final answer
    x = 18,013.21

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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.