Home / 27,846.72-38,428.20-15,271.44

Finding the Fourth Proportional to 27,846.72, 38,428.20 and 15,271.44

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Solution

The fourth proportional to 27,846.72, 38,428.20 and 15,271.44 is: 21,074.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,846.72 : 38,428.20 = 15,271.44 : x
  2. Step 2: Convert to fraction form
    27,846.72/38,428.20 = 15,271.44/x
  3. Step 3: Cross multiply
    27,846.72x = 38,428.20 × 15,271.44
  4. Step 4: Simplify right side
    27,846.72x = 586,853,950.61
  5. Step 5: Solve for x
    x = 586,853,950.61/27,846.72
  6. Step 6: Final answer
    x = 21,074.44

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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.