Home / 23,176.64-31,966.77-15,215.96

Finding the Fourth Proportional to 23,176.64, 31,966.77 and 15,215.96

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Solution

The fourth proportional to 23,176.64, 31,966.77 and 15,215.96 is: 20,986.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,176.64 : 31,966.77 = 15,215.96 : x
  2. Step 2: Convert to fraction form
    23,176.64/31,966.77 = 15,215.96/x
  3. Step 3: Cross multiply
    23,176.64x = 31,966.77 × 15,215.96
  4. Step 4: Simplify right side
    23,176.64x = 486,405,093.65
  5. Step 5: Solve for x
    x = 486,405,093.65/23,176.64
  6. Step 6: Final answer
    x = 20,986.87

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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.