Home / 39,286.72-54,235.76-30,314.08

Finding the Fourth Proportional to 39,286.72, 54,235.76 and 30,314.08

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Solution

The fourth proportional to 39,286.72, 54,235.76 and 30,314.08 is: 41,848.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,286.72 : 54,235.76 = 30,314.08 : x
  2. Step 2: Convert to fraction form
    39,286.72/54,235.76 = 30,314.08/x
  3. Step 3: Cross multiply
    39,286.72x = 54,235.76 × 30,314.08
  4. Step 4: Simplify right side
    39,286.72x = 1,644,107,167.50
  5. Step 5: Solve for x
    x = 1,644,107,167.50/39,286.72
  6. Step 6: Final answer
    x = 41,848.93

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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.