Home / 19,088.20-28,583.70-18,213.40

Finding the Fourth Proportional to 19,088.20, 28,583.70 and 18,213.40

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Solution

The fourth proportional to 19,088.20, 28,583.70 and 18,213.40 is: 27,273.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,088.20 : 28,583.70 = 18,213.40 : x
  2. Step 2: Convert to fraction form
    19,088.20/28,583.70 = 18,213.40/x
  3. Step 3: Cross multiply
    19,088.20x = 28,583.70 × 18,213.40
  4. Step 4: Simplify right side
    19,088.20x = 520,606,361.58
  5. Step 5: Solve for x
    x = 520,606,361.58/19,088.20
  6. Step 6: Final answer
    x = 27,273.73

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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.