Home / 22,758.44-31,406.54-15,215.72

Finding the Fourth Proportional to 22,758.44, 31,406.54 and 15,215.72

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Solution

The fourth proportional to 22,758.44, 31,406.54 and 15,215.72 is: 20,997.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,758.44 : 31,406.54 = 15,215.72 : x
  2. Step 2: Convert to fraction form
    22,758.44/31,406.54 = 15,215.72/x
  3. Step 3: Cross multiply
    22,758.44x = 31,406.54 × 15,215.72
  4. Step 4: Simplify right side
    22,758.44x = 477,873,118.81
  5. Step 5: Solve for x
    x = 477,873,118.81/22,758.44
  6. Step 6: Final answer
    x = 20,997.62

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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.