Home / 19,131.40-28,701.15-5,803.30

Finding the Fourth Proportional to 19,131.40, 28,701.15 and 5,803.30

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Solution

The fourth proportional to 19,131.40, 28,701.15 and 5,803.30 is: 8,706.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.40 : 28,701.15 = 5,803.30 : x
  2. Step 2: Convert to fraction form
    19,131.40/28,701.15 = 5,803.30/x
  3. Step 3: Cross multiply
    19,131.40x = 28,701.15 × 5,803.30
  4. Step 4: Simplify right side
    19,131.40x = 166,561,383.80
  5. Step 5: Solve for x
    x = 166,561,383.80/19,131.40
  6. Step 6: Final answer
    x = 8,706.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.