Home / 18,028.09-26,988.88-13,316.81

Finding the Fourth Proportional to 18,028.09, 26,988.88 and 13,316.81

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Solution

The fourth proportional to 18,028.09, 26,988.88 and 13,316.81 is: 19,935.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,028.09 : 26,988.88 = 13,316.81 : x
  2. Step 2: Convert to fraction form
    18,028.09/26,988.88 = 13,316.81/x
  3. Step 3: Cross multiply
    18,028.09x = 26,988.88 × 13,316.81
  4. Step 4: Simplify right side
    18,028.09x = 359,405,720.49
  5. Step 5: Solve for x
    x = 359,405,720.49/18,028.09
  6. Step 6: Final answer
    x = 19,935.87

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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.