Home / 20,146.82-30,225.90-7,000.52

Finding the Fourth Proportional to 20,146.82, 30,225.90 and 7,000.52

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Solution

The fourth proportional to 20,146.82, 30,225.90 and 7,000.52 is: 10,502.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.82 : 30,225.90 = 7,000.52 : x
  2. Step 2: Convert to fraction form
    20,146.82/30,225.90 = 7,000.52/x
  3. Step 3: Cross multiply
    20,146.82x = 30,225.90 × 7,000.52
  4. Step 4: Simplify right side
    20,146.82x = 211,597,017.47
  5. Step 5: Solve for x
    x = 211,597,017.47/20,146.82
  6. Step 6: Final answer
    x = 10,502.75

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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.