Home / 27,421.58-37,843.26-15,485.42

Finding the Fourth Proportional to 27,421.58, 37,843.26 and 15,485.42

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Solution

The fourth proportional to 27,421.58, 37,843.26 and 15,485.42 is: 21,370.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,421.58 : 37,843.26 = 15,485.42 : x
  2. Step 2: Convert to fraction form
    27,421.58/37,843.26 = 15,485.42/x
  3. Step 3: Cross multiply
    27,421.58x = 37,843.26 × 15,485.42
  4. Step 4: Simplify right side
    27,421.58x = 586,018,775.27
  5. Step 5: Solve for x
    x = 586,018,775.27/27,421.58
  6. Step 6: Final answer
    x = 21,370.72

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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.