Home / 19,605.41-29,390.29-7,120.07

Finding the Fourth Proportional to 19,605.41, 29,390.29 and 7,120.07

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Solution

The fourth proportional to 19,605.41, 29,390.29 and 7,120.07 is: 10,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.41 : 29,390.29 = 7,120.07 : x
  2. Step 2: Convert to fraction form
    19,605.41/29,390.29 = 7,120.07/x
  3. Step 3: Cross multiply
    19,605.41x = 29,390.29 × 7,120.07
  4. Step 4: Simplify right side
    19,605.41x = 209,260,922.12
  5. Step 5: Solve for x
    x = 209,260,922.12/19,605.41
  6. Step 6: Final answer
    x = 10,673.63

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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.