Home / 47,876.28-71,813.38-12,815.92

Finding the Fourth Proportional to 47,876.28, 71,813.38 and 12,815.92

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Solution

The fourth proportional to 47,876.28, 71,813.38 and 12,815.92 is: 19,223.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,876.28 : 71,813.38 = 12,815.92 : x
  2. Step 2: Convert to fraction form
    47,876.28/71,813.38 = 12,815.92/x
  3. Step 3: Cross multiply
    47,876.28x = 71,813.38 × 12,815.92
  4. Step 4: Simplify right side
    47,876.28x = 920,354,533.01
  5. Step 5: Solve for x
    x = 920,354,533.01/47,876.28
  6. Step 6: Final answer
    x = 19,223.60

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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.