Home / 39,852.60-54,995.52-21,947.64

Finding the Fourth Proportional to 39,852.60, 54,995.52 and 21,947.64

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Solution

The fourth proportional to 39,852.60, 54,995.52 and 21,947.64 is: 30,287.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,852.60 : 54,995.52 = 21,947.64 : x
  2. Step 2: Convert to fraction form
    39,852.60/54,995.52 = 21,947.64/x
  3. Step 3: Cross multiply
    39,852.60x = 54,995.52 × 21,947.64
  4. Step 4: Simplify right side
    39,852.60x = 1,207,021,874.57
  5. Step 5: Solve for x
    x = 1,207,021,874.57/39,852.60
  6. Step 6: Final answer
    x = 30,287.16

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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.