Home / 38,977.62-53,790.67-21,751.49

Finding the Fourth Proportional to 38,977.62, 53,790.67 and 21,751.49

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Solution

The fourth proportional to 38,977.62, 53,790.67 and 21,751.49 is: 30,017.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,977.62 : 53,790.67 = 21,751.49 : x
  2. Step 2: Convert to fraction form
    38,977.62/53,790.67 = 21,751.49/x
  3. Step 3: Cross multiply
    38,977.62x = 53,790.67 × 21,751.49
  4. Step 4: Simplify right side
    38,977.62x = 1,170,027,220.60
  5. Step 5: Solve for x
    x = 1,170,027,220.60/38,977.62
  6. Step 6: Final answer
    x = 30,017.92

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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.