Home / 20,257.18-27,950.63-11,758.25

Finding the Fourth Proportional to 20,257.18, 27,950.63 and 11,758.25

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Solution

The fourth proportional to 20,257.18, 27,950.63 and 11,758.25 is: 16,223.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,257.18 : 27,950.63 = 11,758.25 : x
  2. Step 2: Convert to fraction form
    20,257.18/27,950.63 = 11,758.25/x
  3. Step 3: Cross multiply
    20,257.18x = 27,950.63 × 11,758.25
  4. Step 4: Simplify right side
    20,257.18x = 328,650,495.20
  5. Step 5: Solve for x
    x = 328,650,495.20/20,257.18
  6. Step 6: Final answer
    x = 16,223.90

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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.