Home / 39,243.72-54,176.40-30,271.08

Finding the Fourth Proportional to 39,243.72, 54,176.40 and 30,271.08

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Solution

The fourth proportional to 39,243.72, 54,176.40 and 30,271.08 is: 41,789.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,243.72 : 54,176.40 = 30,271.08 : x
  2. Step 2: Convert to fraction form
    39,243.72/54,176.40 = 30,271.08/x
  3. Step 3: Cross multiply
    39,243.72x = 54,176.40 × 30,271.08
  4. Step 4: Simplify right side
    39,243.72x = 1,639,978,138.51
  5. Step 5: Solve for x
    x = 1,639,978,138.51/39,243.72
  6. Step 6: Final answer
    x = 41,789.57

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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.