Home / 28,215.24-38,936.16-15,952.26

Finding the Fourth Proportional to 28,215.24, 38,936.16 and 15,952.26

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Solution

The fourth proportional to 28,215.24, 38,936.16 and 15,952.26 is: 22,013.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,215.24 : 38,936.16 = 15,952.26 : x
  2. Step 2: Convert to fraction form
    28,215.24/38,936.16 = 15,952.26/x
  3. Step 3: Cross multiply
    28,215.24x = 38,936.16 × 15,952.26
  4. Step 4: Simplify right side
    28,215.24x = 621,119,747.72
  5. Step 5: Solve for x
    x = 621,119,747.72/28,215.24
  6. Step 6: Final answer
    x = 22,013.63

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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.