Home / 38,975.55-53,786.23-21,070.56

Finding the Fourth Proportional to 38,975.55, 53,786.23 and 21,070.56

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Solution

The fourth proportional to 38,975.55, 53,786.23 and 21,070.56 is: 29,077.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,975.55 : 53,786.23 = 21,070.56 : x
  2. Step 2: Convert to fraction form
    38,975.55/53,786.23 = 21,070.56/x
  3. Step 3: Cross multiply
    38,975.55x = 53,786.23 × 21,070.56
  4. Step 4: Simplify right side
    38,975.55x = 1,133,305,986.39
  5. Step 5: Solve for x
    x = 1,133,305,986.39/38,975.55
  6. Step 6: Final answer
    x = 29,077.36

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Double scale
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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.