Home / 34,140.90-51,187.05-13,072.80

Finding the Fourth Proportional to 34,140.90, 51,187.05 and 13,072.80

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Solution

The fourth proportional to 34,140.90, 51,187.05 and 13,072.80 is: 19,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,140.90 : 51,187.05 = 13,072.80 : x
  2. Step 2: Convert to fraction form
    34,140.90/51,187.05 = 13,072.80/x
  3. Step 3: Cross multiply
    34,140.90x = 51,187.05 × 13,072.80
  4. Step 4: Simplify right side
    34,140.90x = 669,158,067.24
  5. Step 5: Solve for x
    x = 669,158,067.24/34,140.90
  6. Step 6: Final answer
    x = 19,599.90

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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.