Home / 38,455.92-53,065.80-21,458.88

Finding the Fourth Proportional to 38,455.92, 53,065.80 and 21,458.88

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Solution

The fourth proportional to 38,455.92, 53,065.80 and 21,458.88 is: 29,611.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,455.92 : 53,065.80 = 21,458.88 : x
  2. Step 2: Convert to fraction form
    38,455.92/53,065.80 = 21,458.88/x
  3. Step 3: Cross multiply
    38,455.92x = 53,065.80 × 21,458.88
  4. Step 4: Simplify right side
    38,455.92x = 1,138,732,634.30
  5. Step 5: Solve for x
    x = 1,138,732,634.30/38,455.92
  6. Step 6: Final answer
    x = 29,611.37

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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.