Home / 20,141.28-27,822.99-19,157.16

Finding the Fourth Proportional to 20,141.28, 27,822.99 and 19,157.16

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Solution

The fourth proportional to 20,141.28, 27,822.99 and 19,157.16 is: 26,463.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.28 : 27,822.99 = 19,157.16 : x
  2. Step 2: Convert to fraction form
    20,141.28/27,822.99 = 19,157.16/x
  3. Step 3: Cross multiply
    20,141.28x = 27,822.99 × 19,157.16
  4. Step 4: Simplify right side
    20,141.28x = 533,009,471.11
  5. Step 5: Solve for x
    x = 533,009,471.11/20,141.28
  6. Step 6: Final answer
    x = 26,463.54

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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.