Home / 20,777.52-28,675.43-11,703.18

Finding the Fourth Proportional to 20,777.52, 28,675.43 and 11,703.18

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Solution

The fourth proportional to 20,777.52, 28,675.43 and 11,703.18 is: 16,151.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,777.52 : 28,675.43 = 11,703.18 : x
  2. Step 2: Convert to fraction form
    20,777.52/28,675.43 = 11,703.18/x
  3. Step 3: Cross multiply
    20,777.52x = 28,675.43 × 11,703.18
  4. Step 4: Simplify right side
    20,777.52x = 335,593,718.87
  5. Step 5: Solve for x
    x = 335,593,718.87/20,777.52
  6. Step 6: Final answer
    x = 16,151.77

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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.