Home / 39,475.78-54,474.28-21,570.93

Finding the Fourth Proportional to 39,475.78, 54,474.28 and 21,570.93

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Solution

The fourth proportional to 39,475.78, 54,474.28 and 21,570.93 is: 29,766.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,475.78 : 54,474.28 = 21,570.93 : x
  2. Step 2: Convert to fraction form
    39,475.78/54,474.28 = 21,570.93/x
  3. Step 3: Cross multiply
    39,475.78x = 54,474.28 × 21,570.93
  4. Step 4: Simplify right side
    39,475.78x = 1,175,060,826.75
  5. Step 5: Solve for x
    x = 1,175,060,826.75/39,475.78
  6. Step 6: Final answer
    x = 29,766.63

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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.