Home / 27,271.72-37,638.30-15,335.56

Finding the Fourth Proportional to 27,271.72, 37,638.30 and 15,335.56

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Solution

The fourth proportional to 27,271.72, 37,638.30 and 15,335.56 is: 21,164.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,271.72 : 37,638.30 = 15,335.56 : x
  2. Step 2: Convert to fraction form
    27,271.72/37,638.30 = 15,335.56/x
  3. Step 3: Cross multiply
    27,271.72x = 37,638.30 × 15,335.56
  4. Step 4: Simplify right side
    27,271.72x = 577,204,407.95
  5. Step 5: Solve for x
    x = 577,204,407.95/27,271.72
  6. Step 6: Final answer
    x = 21,164.94

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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.