Home / 20,160.38-30,088.08-19,635.50

Finding the Fourth Proportional to 20,160.38, 30,088.08 and 19,635.50

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Solution

The fourth proportional to 20,160.38, 30,088.08 and 19,635.50 is: 29,304.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.38 : 30,088.08 = 19,635.50 : x
  2. Step 2: Convert to fraction form
    20,160.38/30,088.08 = 19,635.50/x
  3. Step 3: Cross multiply
    20,160.38x = 30,088.08 × 19,635.50
  4. Step 4: Simplify right side
    20,160.38x = 590,794,494.84
  5. Step 5: Solve for x
    x = 590,794,494.84/20,160.38
  6. Step 6: Final answer
    x = 29,304.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.