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Finding the Fourth Proportional to 34,788, 48,007.44 and 19,680.36

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Solution

The fourth proportional to 34,788, 48,007.44 and 19,680.36 is: 27,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,788 : 48,007.44 = 19,680.36 : x
  2. Step 2: Convert to fraction form
    34,788/48,007.44 = 19,680.36/x
  3. Step 3: Cross multiply
    34,788x = 48,007.44 × 19,680.36
  4. Step 4: Simplify right side
    34,788x = 944,803,701.88
  5. Step 5: Solve for x
    x = 944,803,701.88/34,788
  6. Step 6: Final answer
    x = 27,158.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.