Home / 23,128.46-31,883.90-15,156.85

Finding the Fourth Proportional to 23,128.46, 31,883.90 and 15,156.85

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Solution

The fourth proportional to 23,128.46, 31,883.90 and 15,156.85 is: 20,894.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,128.46 : 31,883.90 = 15,156.85 : x
  2. Step 2: Convert to fraction form
    23,128.46/31,883.90 = 15,156.85/x
  3. Step 3: Cross multiply
    23,128.46x = 31,883.90 × 15,156.85
  4. Step 4: Simplify right side
    23,128.46x = 483,259,489.72
  5. Step 5: Solve for x
    x = 483,259,489.72/23,128.46
  6. Step 6: Final answer
    x = 20,894.58

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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.