Home / 20,087.37-27,731.61-13,723.53

Finding the Fourth Proportional to 20,087.37, 27,731.61 and 13,723.53

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Solution

The fourth proportional to 20,087.37, 27,731.61 and 13,723.53 is: 18,946.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.37 : 27,731.61 = 13,723.53 : x
  2. Step 2: Convert to fraction form
    20,087.37/27,731.61 = 13,723.53/x
  3. Step 3: Cross multiply
    20,087.37x = 27,731.61 × 13,723.53
  4. Step 4: Simplify right side
    20,087.37x = 380,575,581.78
  5. Step 5: Solve for x
    x = 380,575,581.78/20,087.37
  6. Step 6: Final answer
    x = 18,946.01

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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.