Home / 39,429.30-54,407.64-22,435.70

Finding the Fourth Proportional to 39,429.30, 54,407.64 and 22,435.70

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Solution

The fourth proportional to 39,429.30, 54,407.64 and 22,435.70 is: 30,958.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,429.30 : 54,407.64 = 22,435.70 : x
  2. Step 2: Convert to fraction form
    39,429.30/54,407.64 = 22,435.70/x
  3. Step 3: Cross multiply
    39,429.30x = 54,407.64 × 22,435.70
  4. Step 4: Simplify right side
    39,429.30x = 1,220,673,352.73
  5. Step 5: Solve for x
    x = 1,220,673,352.73/39,429.30
  6. Step 6: Final answer
    x = 30,958.54

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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.