Home / 34,538.83-47,665.34-20,391.37

Finding the Fourth Proportional to 34,538.83, 47,665.34 and 20,391.37

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Solution

The fourth proportional to 34,538.83, 47,665.34 and 20,391.37 is: 28,141.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,538.83 : 47,665.34 = 20,391.37 : x
  2. Step 2: Convert to fraction form
    34,538.83/47,665.34 = 20,391.37/x
  3. Step 3: Cross multiply
    34,538.83x = 47,665.34 × 20,391.37
  4. Step 4: Simplify right side
    34,538.83x = 971,961,584.12
  5. Step 5: Solve for x
    x = 971,961,584.12/34,538.83
  6. Step 6: Final answer
    x = 28,141.13

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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.