Home / 21,004.98-28,986.71-11,444.84

Finding the Fourth Proportional to 21,004.98, 28,986.71 and 11,444.84

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Solution

The fourth proportional to 21,004.98, 28,986.71 and 11,444.84 is: 15,793.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004.98 : 28,986.71 = 11,444.84 : x
  2. Step 2: Convert to fraction form
    21,004.98/28,986.71 = 11,444.84/x
  3. Step 3: Cross multiply
    21,004.98x = 28,986.71 × 11,444.84
  4. Step 4: Simplify right side
    21,004.98x = 331,748,055.92
  5. Step 5: Solve for x
    x = 331,748,055.92/21,004.98
  6. Step 6: Final answer
    x = 15,793.78

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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.