Home / 39,474.89-54,475.44-21,570.20

Finding the Fourth Proportional to 39,474.89, 54,475.44 and 21,570.20

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Solution

The fourth proportional to 39,474.89, 54,475.44 and 21,570.20 is: 29,766.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,474.89 : 54,475.44 = 21,570.20 : x
  2. Step 2: Convert to fraction form
    39,474.89/54,475.44 = 21,570.20/x
  3. Step 3: Cross multiply
    39,474.89x = 54,475.44 × 21,570.20
  4. Step 4: Simplify right side
    39,474.89x = 1,175,045,986.91
  5. Step 5: Solve for x
    x = 1,175,045,986.91/39,474.89
  6. Step 6: Final answer
    x = 29,766.92

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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.