Home / 19,165.05-28,740.39-6,681.87

Finding the Fourth Proportional to 19,165.05, 28,740.39 and 6,681.87

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Solution

The fourth proportional to 19,165.05, 28,740.39 and 6,681.87 is: 10,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,165.05 : 28,740.39 = 6,681.87 : x
  2. Step 2: Convert to fraction form
    19,165.05/28,740.39 = 6,681.87/x
  3. Step 3: Cross multiply
    19,165.05x = 28,740.39 × 6,681.87
  4. Step 4: Simplify right side
    19,165.05x = 192,039,549.73
  5. Step 5: Solve for x
    x = 192,039,549.73/19,165.05
  6. Step 6: Final answer
    x = 10,020.30

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1.5x scale

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.