Home / 20,161.26-30,106.01-16,470.78

Finding the Fourth Proportional to 20,161.26, 30,106.01 and 16,470.78

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Solution

The fourth proportional to 20,161.26, 30,106.01 and 16,470.78 is: 24,595.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.26 : 30,106.01 = 16,470.78 : x
  2. Step 2: Convert to fraction form
    20,161.26/30,106.01 = 16,470.78/x
  3. Step 3: Cross multiply
    20,161.26x = 30,106.01 × 16,470.78
  4. Step 4: Simplify right side
    20,161.26x = 495,869,385.03
  5. Step 5: Solve for x
    x = 495,869,385.03/20,161.26
  6. Step 6: Final answer
    x = 24,595.16

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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.