Home / 39,558.06-54,589.86-21,652.92

Finding the Fourth Proportional to 39,558.06, 54,589.86 and 21,652.92

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Solution

The fourth proportional to 39,558.06, 54,589.86 and 21,652.92 is: 29,880.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,558.06 : 54,589.86 = 21,652.92 : x
  2. Step 2: Convert to fraction form
    39,558.06/54,589.86 = 21,652.92/x
  3. Step 3: Cross multiply
    39,558.06x = 54,589.86 × 21,652.92
  4. Step 4: Simplify right side
    39,558.06x = 1,182,029,871.39
  5. Step 5: Solve for x
    x = 1,182,029,871.39/39,558.06
  6. Step 6: Final answer
    x = 29,880.89

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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.