Home / 20,108.54-30,162.81-6,953.73

Finding the Fourth Proportional to 20,108.54, 30,162.81 and 6,953.73

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Solution

The fourth proportional to 20,108.54, 30,162.81 and 6,953.73 is: 10,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108.54 : 30,162.81 = 6,953.73 : x
  2. Step 2: Convert to fraction form
    20,108.54/30,162.81 = 6,953.73/x
  3. Step 3: Cross multiply
    20,108.54x = 30,162.81 × 6,953.73
  4. Step 4: Simplify right side
    20,108.54x = 209,744,036.78
  5. Step 5: Solve for x
    x = 209,744,036.78/20,108.54
  6. Step 6: Final answer
    x = 10,430.60

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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.