Home / 20,477.14-28,267.17-13,766.66

Finding the Fourth Proportional to 20,477.14, 28,267.17 and 13,766.66

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Solution

The fourth proportional to 20,477.14, 28,267.17 and 13,766.66 is: 19,003.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,477.14 : 28,267.17 = 13,766.66 : x
  2. Step 2: Convert to fraction form
    20,477.14/28,267.17 = 13,766.66/x
  3. Step 3: Cross multiply
    20,477.14x = 28,267.17 × 13,766.66
  4. Step 4: Simplify right side
    20,477.14x = 389,144,518.55
  5. Step 5: Solve for x
    x = 389,144,518.55/20,477.14
  6. Step 6: Final answer
    x = 19,003.85

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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.