Home / 20,384.48-30,517.38-11,925.02

Finding the Fourth Proportional to 20,384.48, 30,517.38 and 11,925.02

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Solution

The fourth proportional to 20,384.48, 30,517.38 and 11,925.02 is: 17,852.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,384.48 : 30,517.38 = 11,925.02 : x
  2. Step 2: Convert to fraction form
    20,384.48/30,517.38 = 11,925.02/x
  3. Step 3: Cross multiply
    20,384.48x = 30,517.38 × 11,925.02
  4. Step 4: Simplify right side
    20,384.48x = 363,920,366.85
  5. Step 5: Solve for x
    x = 363,920,366.85/20,384.48
  6. Step 6: Final answer
    x = 17,852.82

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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.