Home / 47,879.13-71,828.70-14,601.78

Finding the Fourth Proportional to 47,879.13, 71,828.70 and 14,601.78

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Solution

The fourth proportional to 47,879.13, 71,828.70 and 14,601.78 is: 21,905.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,879.13 : 71,828.70 = 14,601.78 : x
  2. Step 2: Convert to fraction form
    47,879.13/71,828.70 = 14,601.78/x
  3. Step 3: Cross multiply
    47,879.13x = 71,828.70 × 14,601.78
  4. Step 4: Simplify right side
    47,879.13x = 1,048,826,875.09
  5. Step 5: Solve for x
    x = 1,048,826,875.09/47,879.13
  6. Step 6: Final answer
    x = 21,905.72

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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.