Home / 16,991.42-23,457.75-11,028.38

Finding the Fourth Proportional to 16,991.42, 23,457.75 and 11,028.38

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Solution

The fourth proportional to 16,991.42, 23,457.75 and 11,028.38 is: 15,225.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.42 : 23,457.75 = 11,028.38 : x
  2. Step 2: Convert to fraction form
    16,991.42/23,457.75 = 11,028.38/x
  3. Step 3: Cross multiply
    16,991.42x = 23,457.75 × 11,028.38
  4. Step 4: Simplify right side
    16,991.42x = 258,700,980.95
  5. Step 5: Solve for x
    x = 258,700,980.95/16,991.42
  6. Step 6: Final answer
    x = 15,225.39

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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.