Home / 38,558.13-57,810.84-20,549.07

Finding the Fourth Proportional to 38,558.13, 57,810.84 and 20,549.07

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Solution

The fourth proportional to 38,558.13, 57,810.84 and 20,549.07 is: 30,809.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,558.13 : 57,810.84 = 20,549.07 : x
  2. Step 2: Convert to fraction form
    38,558.13/57,810.84 = 20,549.07/x
  3. Step 3: Cross multiply
    38,558.13x = 57,810.84 × 20,549.07
  4. Step 4: Simplify right side
    38,558.13x = 1,187,958,997.92
  5. Step 5: Solve for x
    x = 1,187,958,997.92/38,558.13
  6. Step 6: Final answer
    x = 30,809.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.