Home / 20,558.07-30,816.18-9,472.95

Finding the Fourth Proportional to 20,558.07, 30,816.18 and 9,472.95

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Solution

The fourth proportional to 20,558.07, 30,816.18 and 9,472.95 is: 14,199.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.07 : 30,816.18 = 9,472.95 : x
  2. Step 2: Convert to fraction form
    20,558.07/30,816.18 = 9,472.95/x
  3. Step 3: Cross multiply
    20,558.07x = 30,816.18 × 9,472.95
  4. Step 4: Simplify right side
    20,558.07x = 291,920,132.33
  5. Step 5: Solve for x
    x = 291,920,132.33/20,558.07
  6. Step 6: Final answer
    x = 14,199.78

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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.