Home / 20,101.37-30,152.30-13,859.70

Finding the Fourth Proportional to 20,101.37, 30,152.30 and 13,859.70

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Solution

The fourth proportional to 20,101.37, 30,152.30 and 13,859.70 is: 20,789.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.37 : 30,152.30 = 13,859.70 : x
  2. Step 2: Convert to fraction form
    20,101.37/30,152.30 = 13,859.70/x
  3. Step 3: Cross multiply
    20,101.37x = 30,152.30 × 13,859.70
  4. Step 4: Simplify right side
    20,101.37x = 417,901,763.01
  5. Step 5: Solve for x
    x = 417,901,763.01/20,101.37
  6. Step 6: Final answer
    x = 20,789.72

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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.