Home / 47,738.12-71,630.24-19,678.92

Finding the Fourth Proportional to 47,738.12, 71,630.24 and 19,678.92

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Solution

The fourth proportional to 47,738.12, 71,630.24 and 19,678.92 is: 29,527.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,738.12 : 71,630.24 = 19,678.92 : x
  2. Step 2: Convert to fraction form
    47,738.12/71,630.24 = 19,678.92/x
  3. Step 3: Cross multiply
    47,738.12x = 71,630.24 × 19,678.92
  4. Step 4: Simplify right side
    47,738.12x = 1,409,605,762.54
  5. Step 5: Solve for x
    x = 1,409,605,762.54/47,738.12
  6. Step 6: Final answer
    x = 29,527.89

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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.