Home / 19,291.10-28,906.70-13,379.51

Finding the Fourth Proportional to 19,291.10, 28,906.70 and 13,379.51

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Solution

The fourth proportional to 19,291.10, 28,906.70 and 13,379.51 is: 20,048.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,291.10 : 28,906.70 = 13,379.51 : x
  2. Step 2: Convert to fraction form
    19,291.10/28,906.70 = 13,379.51/x
  3. Step 3: Cross multiply
    19,291.10x = 28,906.70 × 13,379.51
  4. Step 4: Simplify right side
    19,291.10x = 386,757,270.29
  5. Step 5: Solve for x
    x = 386,757,270.29/19,291.10
  6. Step 6: Final answer
    x = 20,048.49

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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.