Home / 20,555.36-30,833.12-4,972.96

Finding the Fourth Proportional to 20,555.36, 30,833.12 and 4,972.96

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Solution

The fourth proportional to 20,555.36, 30,833.12 and 4,972.96 is: 7,459.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555.36 : 30,833.12 = 4,972.96 : x
  2. Step 2: Convert to fraction form
    20,555.36/30,833.12 = 4,972.96/x
  3. Step 3: Cross multiply
    20,555.36x = 30,833.12 × 4,972.96
  4. Step 4: Simplify right side
    20,555.36x = 153,331,872.44
  5. Step 5: Solve for x
    x = 153,331,872.44/20,555.36
  6. Step 6: Final answer
    x = 7,459.46

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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.