Home / 39,474.79-54,475.41-21,570.10

Finding the Fourth Proportional to 39,474.79, 54,475.41 and 21,570.10

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Solution

The fourth proportional to 39,474.79, 54,475.41 and 21,570.10 is: 29,766.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,474.79 : 54,475.41 = 21,570.10 : x
  2. Step 2: Convert to fraction form
    39,474.79/54,475.41 = 21,570.10/x
  3. Step 3: Cross multiply
    39,474.79x = 54,475.41 × 21,570.10
  4. Step 4: Simplify right side
    39,474.79x = 1,175,040,041.24
  5. Step 5: Solve for x
    x = 1,175,040,041.24/39,474.79
  6. Step 6: Final answer
    x = 29,766.85

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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.