Home / 20,038.61-27,653.72-11,086.74

Finding the Fourth Proportional to 20,038.61, 27,653.72 and 11,086.74

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Solution

The fourth proportional to 20,038.61, 27,653.72 and 11,086.74 is: 15,299.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,038.61 : 27,653.72 = 11,086.74 : x
  2. Step 2: Convert to fraction form
    20,038.61/27,653.72 = 11,086.74/x
  3. Step 3: Cross multiply
    20,038.61x = 27,653.72 × 11,086.74
  4. Step 4: Simplify right side
    20,038.61x = 306,589,548.24
  5. Step 5: Solve for x
    x = 306,589,548.24/20,038.61
  6. Step 6: Final answer
    x = 15,299.94

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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.