Home / 38,390.09-52,976.12-21,159.03

Finding the Fourth Proportional to 38,390.09, 52,976.12 and 21,159.03

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Solution

The fourth proportional to 38,390.09, 52,976.12 and 21,159.03 is: 29,198.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,390.09 : 52,976.12 = 21,159.03 : x
  2. Step 2: Convert to fraction form
    38,390.09/52,976.12 = 21,159.03/x
  3. Step 3: Cross multiply
    38,390.09x = 52,976.12 × 21,159.03
  4. Step 4: Simplify right side
    38,390.09x = 1,120,923,312.36
  5. Step 5: Solve for x
    x = 1,120,923,312.36/38,390.09
  6. Step 6: Final answer
    x = 29,198.25

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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.