Home / 23,376.52-34,982.70-20,128.78

Finding the Fourth Proportional to 23,376.52, 34,982.70 and 20,128.78

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Solution

The fourth proportional to 23,376.52, 34,982.70 and 20,128.78 is: 30,122.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,376.52 : 34,982.70 = 20,128.78 : x
  2. Step 2: Convert to fraction form
    23,376.52/34,982.70 = 20,128.78/x
  3. Step 3: Cross multiply
    23,376.52x = 34,982.70 × 20,128.78
  4. Step 4: Simplify right side
    23,376.52x = 704,159,072.11
  5. Step 5: Solve for x
    x = 704,159,072.11/23,376.52
  6. Step 6: Final answer
    x = 30,122.49

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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.