Home / 20,993.47-28,961.62-14,185.29

Finding the Fourth Proportional to 20,993.47, 28,961.62 and 14,185.29

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Solution

The fourth proportional to 20,993.47, 28,961.62 and 14,185.29 is: 19,569.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993.47 : 28,961.62 = 14,185.29 : x
  2. Step 2: Convert to fraction form
    20,993.47/28,961.62 = 14,185.29/x
  3. Step 3: Cross multiply
    20,993.47x = 28,961.62 × 14,185.29
  4. Step 4: Simplify right side
    20,993.47x = 410,828,943.11
  5. Step 5: Solve for x
    x = 410,828,943.11/20,993.47
  6. Step 6: Final answer
    x = 19,569.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.