Home / 20,690.44-31,048.11-7,543.94

Finding the Fourth Proportional to 20,690.44, 31,048.11 and 7,543.94

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Solution

The fourth proportional to 20,690.44, 31,048.11 and 7,543.94 is: 11,320.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,690.44 : 31,048.11 = 7,543.94 : x
  2. Step 2: Convert to fraction form
    20,690.44/31,048.11 = 7,543.94/x
  3. Step 3: Cross multiply
    20,690.44x = 31,048.11 × 7,543.94
  4. Step 4: Simplify right side
    20,690.44x = 234,224,923.71
  5. Step 5: Solve for x
    x = 234,224,923.71/20,690.44
  6. Step 6: Final answer
    x = 11,320.44

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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.