Home / 18,720.95-27,999.36-16,293.38

Finding the Fourth Proportional to 18,720.95, 27,999.36 and 16,293.38

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Solution

The fourth proportional to 18,720.95, 27,999.36 and 16,293.38 is: 24,368.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720.95 : 27,999.36 = 16,293.38 : x
  2. Step 2: Convert to fraction form
    18,720.95/27,999.36 = 16,293.38/x
  3. Step 3: Cross multiply
    18,720.95x = 27,999.36 × 16,293.38
  4. Step 4: Simplify right side
    18,720.95x = 456,204,212.24
  5. Step 5: Solve for x
    x = 456,204,212.24/18,720.95
  6. Step 6: Final answer
    x = 24,368.65

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1.5x scale

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.