Home / 47,728.28-71,586.92-12,670.68

Finding the Fourth Proportional to 47,728.28, 71,586.92 and 12,670.68

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Solution

The fourth proportional to 47,728.28, 71,586.92 and 12,670.68 is: 19,004.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,728.28 : 71,586.92 = 12,670.68 : x
  2. Step 2: Convert to fraction form
    47,728.28/71,586.92 = 12,670.68/x
  3. Step 3: Cross multiply
    47,728.28x = 71,586.92 × 12,670.68
  4. Step 4: Simplify right side
    47,728.28x = 907,054,955.51
  5. Step 5: Solve for x
    x = 907,054,955.51/47,728.28
  6. Step 6: Final answer
    x = 19,004.56

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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.