Home / 38,548.24-53,195.88-21,780.88

Finding the Fourth Proportional to 38,548.24, 53,195.88 and 21,780.88

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Solution

The fourth proportional to 38,548.24, 53,195.88 and 21,780.88 is: 30,057.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,548.24 : 53,195.88 = 21,780.88 : x
  2. Step 2: Convert to fraction form
    38,548.24/53,195.88 = 21,780.88/x
  3. Step 3: Cross multiply
    38,548.24x = 53,195.88 × 21,780.88
  4. Step 4: Simplify right side
    38,548.24x = 1,158,653,078.77
  5. Step 5: Solve for x
    x = 1,158,653,078.77/38,548.24
  6. Step 6: Final answer
    x = 30,057.22

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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.