Home / 34,338.72-47,388.60-20,192.88

Finding the Fourth Proportional to 34,338.72, 47,388.60 and 20,192.88

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Solution

The fourth proportional to 34,338.72, 47,388.60 and 20,192.88 is: 27,866.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,338.72 : 47,388.60 = 20,192.88 : x
  2. Step 2: Convert to fraction form
    34,338.72/47,388.60 = 20,192.88/x
  3. Step 3: Cross multiply
    34,338.72x = 47,388.60 × 20,192.88
  4. Step 4: Simplify right side
    34,338.72x = 956,912,313.17
  5. Step 5: Solve for x
    x = 956,912,313.17/34,338.72
  6. Step 6: Final answer
    x = 27,866.86

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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.