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Finding the Fourth Proportional to 38,425.07, 53,027.01 and 21,658.07

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Solution

The fourth proportional to 38,425.07, 53,027.01 and 21,658.07 is: 29,888.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,425.07 : 53,027.01 = 21,658.07 : x
  2. Step 2: Convert to fraction form
    38,425.07/53,027.01 = 21,658.07/x
  3. Step 3: Cross multiply
    38,425.07x = 53,027.01 × 21,658.07
  4. Step 4: Simplify right side
    38,425.07x = 1,148,462,694.47
  5. Step 5: Solve for x
    x = 1,148,462,694.47/38,425.07
  6. Step 6: Final answer
    x = 29,888.37

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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.