Home / 23,021.42-34,503.71-11,921.72

Finding the Fourth Proportional to 23,021.42, 34,503.71 and 11,921.72

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Solution

The fourth proportional to 23,021.42, 34,503.71 and 11,921.72 is: 17,867.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,021.42 : 34,503.71 = 11,921.72 : x
  2. Step 2: Convert to fraction form
    23,021.42/34,503.71 = 11,921.72/x
  3. Step 3: Cross multiply
    23,021.42x = 34,503.71 × 11,921.72
  4. Step 4: Simplify right side
    23,021.42x = 411,343,337.45
  5. Step 5: Solve for x
    x = 411,343,337.45/23,021.42
  6. Step 6: Final answer
    x = 17,867.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.