Home / 48,342.12-72,513.24-13,287

Finding the Fourth Proportional to 48,342.12, 72,513.24 and 13,287

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Solution

The fourth proportional to 48,342.12, 72,513.24 and 13,287 is: 19,930.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,342.12 : 72,513.24 = 13,287 : x
  2. Step 2: Convert to fraction form
    48,342.12/72,513.24 = 13,287/x
  3. Step 3: Cross multiply
    48,342.12x = 72,513.24 × 13,287
  4. Step 4: Simplify right side
    48,342.12x = 963,483,419.88
  5. Step 5: Solve for x
    x = 963,483,419.88/48,342.12
  6. Step 6: Final answer
    x = 19,930.52

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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.