Home / 38,431.80-57,647.70-34,203.60

Finding the Fourth Proportional to 38,431.80, 57,647.70 and 34,203.60

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Solution

The fourth proportional to 38,431.80, 57,647.70 and 34,203.60 is: 51,305.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,431.80 : 57,647.70 = 34,203.60 : x
  2. Step 2: Convert to fraction form
    38,431.80/57,647.70 = 34,203.60/x
  3. Step 3: Cross multiply
    38,431.80x = 57,647.70 × 34,203.60
  4. Step 4: Simplify right side
    38,431.80x = 1,971,758,871.72
  5. Step 5: Solve for x
    x = 1,971,758,871.72/38,431.80
  6. Step 6: Final answer
    x = 51,305.40

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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.