Home / 20,185.74-27,827.10-13,368.36

Finding the Fourth Proportional to 20,185.74, 27,827.10 and 13,368.36

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Solution

The fourth proportional to 20,185.74, 27,827.10 and 13,368.36 is: 18,428.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.74 : 27,827.10 = 13,368.36 : x
  2. Step 2: Convert to fraction form
    20,185.74/27,827.10 = 13,368.36/x
  3. Step 3: Cross multiply
    20,185.74x = 27,827.10 × 13,368.36
  4. Step 4: Simplify right side
    20,185.74x = 372,002,690.56
  5. Step 5: Solve for x
    x = 372,002,690.56/20,185.74
  6. Step 6: Final answer
    x = 18,428.98

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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.