Home / 20,259.02-27,923.98-13,542.19

Finding the Fourth Proportional to 20,259.02, 27,923.98 and 13,542.19

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Solution

The fourth proportional to 20,259.02, 27,923.98 and 13,542.19 is: 18,665.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259.02 : 27,923.98 = 13,542.19 : x
  2. Step 2: Convert to fraction form
    20,259.02/27,923.98 = 13,542.19/x
  3. Step 3: Cross multiply
    20,259.02x = 27,923.98 × 13,542.19
  4. Step 4: Simplify right side
    20,259.02x = 378,151,921.51
  5. Step 5: Solve for x
    x = 378,151,921.51/20,259.02
  6. Step 6: Final answer
    x = 18,665.86

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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.