Home / 20,168.46-30,265.02-11,864.70

Finding the Fourth Proportional to 20,168.46, 30,265.02 and 11,864.70

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Solution

The fourth proportional to 20,168.46, 30,265.02 and 11,864.70 is: 17,804.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.46 : 30,265.02 = 11,864.70 : x
  2. Step 2: Convert to fraction form
    20,168.46/30,265.02 = 11,864.70/x
  3. Step 3: Cross multiply
    20,168.46x = 30,265.02 × 11,864.70
  4. Step 4: Simplify right side
    20,168.46x = 359,085,382.79
  5. Step 5: Solve for x
    x = 359,085,382.79/20,168.46
  6. Step 6: Final answer
    x = 17,804.30

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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.