Home / 34,187.13-47,192.64-20,762.73

Finding the Fourth Proportional to 34,187.13, 47,192.64 and 20,762.73

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Solution

The fourth proportional to 34,187.13, 47,192.64 and 20,762.73 is: 28,661.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,187.13 : 47,192.64 = 20,762.73 : x
  2. Step 2: Convert to fraction form
    34,187.13/47,192.64 = 20,762.73/x
  3. Step 3: Cross multiply
    34,187.13x = 47,192.64 × 20,762.73
  4. Step 4: Simplify right side
    34,187.13x = 979,848,042.31
  5. Step 5: Solve for x
    x = 979,848,042.31/34,187.13
  6. Step 6: Final answer
    x = 28,661.31

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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.