Home / 36,015.40-54,023.10-21,216.70

Finding the Fourth Proportional to 36,015.40, 54,023.10 and 21,216.70

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Solution

The fourth proportional to 36,015.40, 54,023.10 and 21,216.70 is: 31,825.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,015.40 : 54,023.10 = 21,216.70 : x
  2. Step 2: Convert to fraction form
    36,015.40/54,023.10 = 21,216.70/x
  3. Step 3: Cross multiply
    36,015.40x = 54,023.10 × 21,216.70
  4. Step 4: Simplify right side
    36,015.40x = 1,146,191,905.77
  5. Step 5: Solve for x
    x = 1,146,191,905.77/36,015.40
  6. Step 6: Final answer
    x = 31,825.05

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Similar ratio
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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.