Home / 47,717.98-71,585.36-18,138.40

Finding the Fourth Proportional to 47,717.98, 71,585.36 and 18,138.40

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Solution

The fourth proportional to 47,717.98, 71,585.36 and 18,138.40 is: 27,210.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,717.98 : 71,585.36 = 18,138.40 : x
  2. Step 2: Convert to fraction form
    47,717.98/71,585.36 = 18,138.40/x
  3. Step 3: Cross multiply
    47,717.98x = 71,585.36 × 18,138.40
  4. Step 4: Simplify right side
    47,717.98x = 1,298,443,893.82
  5. Step 5: Solve for x
    x = 1,298,443,893.82/47,717.98
  6. Step 6: Final answer
    x = 27,210.79

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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.