Home / 27,180.48-40,784.63-12,387.50

Finding the Fourth Proportional to 27,180.48, 40,784.63 and 12,387.50

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Solution

The fourth proportional to 27,180.48, 40,784.63 and 12,387.50 is: 18,587.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,180.48 : 40,784.63 = 12,387.50 : x
  2. Step 2: Convert to fraction form
    27,180.48/40,784.63 = 12,387.50/x
  3. Step 3: Cross multiply
    27,180.48x = 40,784.63 × 12,387.50
  4. Step 4: Simplify right side
    27,180.48x = 505,219,338.26
  5. Step 5: Solve for x
    x = 505,219,338.26/27,180.48
  6. Step 6: Final answer
    x = 18,587.58

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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.