Home / 20,160.76-30,105.26-16,470.28

Finding the Fourth Proportional to 20,160.76, 30,105.26 and 16,470.28

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Solution

The fourth proportional to 20,160.76, 30,105.26 and 16,470.28 is: 24,594.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.76 : 30,105.26 = 16,470.28 : x
  2. Step 2: Convert to fraction form
    20,160.76/30,105.26 = 16,470.28/x
  3. Step 3: Cross multiply
    20,160.76x = 30,105.26 × 16,470.28
  4. Step 4: Simplify right side
    20,160.76x = 495,842,061.67
  5. Step 5: Solve for x
    x = 495,842,061.67/20,160.76
  6. Step 6: Final answer
    x = 24,594.41

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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.