Home / 38,882.28-53,652.42-21,887.40

Finding the Fourth Proportional to 38,882.28, 53,652.42 and 21,887.40

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Solution

The fourth proportional to 38,882.28, 53,652.42 and 21,887.40 is: 30,201.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,882.28 : 53,652.42 = 21,887.40 : x
  2. Step 2: Convert to fraction form
    38,882.28/53,652.42 = 21,887.40/x
  3. Step 3: Cross multiply
    38,882.28x = 53,652.42 × 21,887.40
  4. Step 4: Simplify right side
    38,882.28x = 1,174,311,977.51
  5. Step 5: Solve for x
    x = 1,174,311,977.51/38,882.28
  6. Step 6: Final answer
    x = 30,201.73

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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.