Home / 20,713.98-28,576.19-13,997.16

Finding the Fourth Proportional to 20,713.98, 28,576.19 and 13,997.16

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Solution

The fourth proportional to 20,713.98, 28,576.19 and 13,997.16 is: 19,309.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.98 : 28,576.19 = 13,997.16 : x
  2. Step 2: Convert to fraction form
    20,713.98/28,576.19 = 13,997.16/x
  3. Step 3: Cross multiply
    20,713.98x = 28,576.19 × 13,997.16
  4. Step 4: Simplify right side
    20,713.98x = 399,985,538.61
  5. Step 5: Solve for x
    x = 399,985,538.61/20,713.98
  6. Step 6: Final answer
    x = 19,309.93

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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.