Home / 34,172.57-51,259.20-11,986.49

Finding the Fourth Proportional to 34,172.57, 51,259.20 and 11,986.49

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Solution

The fourth proportional to 34,172.57, 51,259.20 and 11,986.49 is: 17,979.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,172.57 : 51,259.20 = 11,986.49 : x
  2. Step 2: Convert to fraction form
    34,172.57/51,259.20 = 11,986.49/x
  3. Step 3: Cross multiply
    34,172.57x = 51,259.20 × 11,986.49
  4. Step 4: Simplify right side
    34,172.57x = 614,417,631.91
  5. Step 5: Solve for x
    x = 614,417,631.91/34,172.57
  6. Step 6: Final answer
    x = 17,979.85

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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.