Home / 20,590.70-30,885.68-5,008.46

Finding the Fourth Proportional to 20,590.70, 30,885.68 and 5,008.46

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Solution

The fourth proportional to 20,590.70, 30,885.68 and 5,008.46 is: 7,512.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590.70 : 30,885.68 = 5,008.46 : x
  2. Step 2: Convert to fraction form
    20,590.70/30,885.68 = 5,008.46/x
  3. Step 3: Cross multiply
    20,590.70x = 30,885.68 × 5,008.46
  4. Step 4: Simplify right side
    20,590.70x = 154,689,550.95
  5. Step 5: Solve for x
    x = 154,689,550.95/20,590.70
  6. Step 6: Final answer
    x = 7,512.59

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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.