Home / 39,419.25-54,384.30-30,347.37

Finding the Fourth Proportional to 39,419.25, 54,384.30 and 30,347.37

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Solution

The fourth proportional to 39,419.25, 54,384.30 and 30,347.37 is: 41,868.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,419.25 : 54,384.30 = 30,347.37 : x
  2. Step 2: Convert to fraction form
    39,419.25/54,384.30 = 30,347.37/x
  3. Step 3: Cross multiply
    39,419.25x = 54,384.30 × 30,347.37
  4. Step 4: Simplify right side
    39,419.25x = 1,650,420,474.29
  5. Step 5: Solve for x
    x = 1,650,420,474.29/39,419.25
  6. Step 6: Final answer
    x = 41,868.39

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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.