Home / 39,852.40-54,996.32-21,947.36

Finding the Fourth Proportional to 39,852.40, 54,996.32 and 21,947.36

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Solution

The fourth proportional to 39,852.40, 54,996.32 and 21,947.36 is: 30,287.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,852.40 : 54,996.32 = 21,947.36 : x
  2. Step 2: Convert to fraction form
    39,852.40/54,996.32 = 21,947.36/x
  3. Step 3: Cross multiply
    39,852.40x = 54,996.32 × 21,947.36
  4. Step 4: Simplify right side
    39,852.40x = 1,207,024,033.72
  5. Step 5: Solve for x
    x = 1,207,024,033.72/39,852.40
  6. Step 6: Final answer
    x = 30,287.36

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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.