Home / 39,140.88-58,720.92-18,340.08

Finding the Fourth Proportional to 39,140.88, 58,720.92 and 18,340.08

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Solution

The fourth proportional to 39,140.88, 58,720.92 and 18,340.08 is: 27,514.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,140.88 : 58,720.92 = 18,340.08 : x
  2. Step 2: Convert to fraction form
    39,140.88/58,720.92 = 18,340.08/x
  3. Step 3: Cross multiply
    39,140.88x = 58,720.92 × 18,340.08
  4. Step 4: Simplify right side
    39,140.88x = 1,076,946,370.47
  5. Step 5: Solve for x
    x = 1,076,946,370.47/39,140.88
  6. Step 6: Final answer
    x = 27,514.62

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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.