Home / 47,388.48-71,068.32-19,680

Finding the Fourth Proportional to 47,388.48, 71,068.32 and 19,680

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Solution

The fourth proportional to 47,388.48, 71,068.32 and 19,680 is: 29,514.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,388.48 : 71,068.32 = 19,680 : x
  2. Step 2: Convert to fraction form
    47,388.48/71,068.32 = 19,680/x
  3. Step 3: Cross multiply
    47,388.48x = 71,068.32 × 19,680
  4. Step 4: Simplify right side
    47,388.48x = 1,398,624,537.60
  5. Step 5: Solve for x
    x = 1,398,624,537.60/47,388.48
  6. Step 6: Final answer
    x = 29,514.02

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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.