Home / 20,151.43-27,779.66-14,082.83

Finding the Fourth Proportional to 20,151.43, 27,779.66 and 14,082.83

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Solution

The fourth proportional to 20,151.43, 27,779.66 and 14,082.83 is: 19,413.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.43 : 27,779.66 = 14,082.83 : x
  2. Step 2: Convert to fraction form
    20,151.43/27,779.66 = 14,082.83/x
  3. Step 3: Cross multiply
    20,151.43x = 27,779.66 × 14,082.83
  4. Step 4: Simplify right side
    20,151.43x = 391,216,090.34
  5. Step 5: Solve for x
    x = 391,216,090.34/20,151.43
  6. Step 6: Final answer
    x = 19,413.82

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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.