Home / 20,400.12-30,596.94-7,925.85

Finding the Fourth Proportional to 20,400.12, 30,596.94 and 7,925.85

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Solution

The fourth proportional to 20,400.12, 30,596.94 and 7,925.85 is: 11,887.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,400.12 : 30,596.94 = 7,925.85 : x
  2. Step 2: Convert to fraction form
    20,400.12/30,596.94 = 7,925.85/x
  3. Step 3: Cross multiply
    20,400.12x = 30,596.94 × 7,925.85
  4. Step 4: Simplify right side
    20,400.12x = 242,506,756.90
  5. Step 5: Solve for x
    x = 242,506,756.90/20,400.12
  6. Step 6: Final answer
    x = 11,887.52

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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.