Home / 27,756.66-38,305.10-15,181.41

Finding the Fourth Proportional to 27,756.66, 38,305.10 and 15,181.41

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Solution

The fourth proportional to 27,756.66, 38,305.10 and 15,181.41 is: 20,950.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,756.66 : 38,305.10 = 15,181.41 : x
  2. Step 2: Convert to fraction form
    27,756.66/38,305.10 = 15,181.41/x
  3. Step 3: Cross multiply
    27,756.66x = 38,305.10 × 15,181.41
  4. Step 4: Simplify right side
    27,756.66x = 581,525,352.28
  5. Step 5: Solve for x
    x = 581,525,352.28/27,756.66
  6. Step 6: Final answer
    x = 20,950.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.