Home / 27,135.81-40,650.72-18,700.82

Finding the Fourth Proportional to 27,135.81, 40,650.72 and 18,700.82

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Solution

The fourth proportional to 27,135.81, 40,650.72 and 18,700.82 is: 28,014.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,135.81 : 40,650.72 = 18,700.82 : x
  2. Step 2: Convert to fraction form
    27,135.81/40,650.72 = 18,700.82/x
  3. Step 3: Cross multiply
    27,135.81x = 40,650.72 × 18,700.82
  4. Step 4: Simplify right side
    27,135.81x = 760,201,594.34
  5. Step 5: Solve for x
    x = 760,201,594.34/27,135.81
  6. Step 6: Final answer
    x = 28,014.70

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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.