Home / 20,273.16-27,945.18-18,643.83

Finding the Fourth Proportional to 20,273.16, 27,945.18 and 18,643.83

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Solution

The fourth proportional to 20,273.16, 27,945.18 and 18,643.83 is: 25,699.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,273.16 : 27,945.18 = 18,643.83 : x
  2. Step 2: Convert to fraction form
    20,273.16/27,945.18 = 18,643.83/x
  3. Step 3: Cross multiply
    20,273.16x = 27,945.18 × 18,643.83
  4. Step 4: Simplify right side
    20,273.16x = 521,005,185.24
  5. Step 5: Solve for x
    x = 521,005,185.24/20,273.16
  6. Step 6: Final answer
    x = 25,699.26

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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.