Home / 47,992.10-71,999.48-21,696.80

Finding the Fourth Proportional to 47,992.10, 71,999.48 and 21,696.80

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Solution

The fourth proportional to 47,992.10, 71,999.48 and 21,696.80 is: 32,550.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,992.10 : 71,999.48 = 21,696.80 : x
  2. Step 2: Convert to fraction form
    47,992.10/71,999.48 = 21,696.80/x
  3. Step 3: Cross multiply
    47,992.10x = 71,999.48 × 21,696.80
  4. Step 4: Simplify right side
    47,992.10x = 1,562,158,011.91
  5. Step 5: Solve for x
    x = 1,562,158,011.91/47,992.10
  6. Step 6: Final answer
    x = 32,550.32

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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.