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Finding the Fourth Proportional to 20,323.53, 30,484.53 and 7,175.57

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Solution

The fourth proportional to 20,323.53, 30,484.53 and 7,175.57 is: 10,763.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.53 : 30,484.53 = 7,175.57 : x
  2. Step 2: Convert to fraction form
    20,323.53/30,484.53 = 7,175.57/x
  3. Step 3: Cross multiply
    20,323.53x = 30,484.53 × 7,175.57
  4. Step 4: Simplify right side
    20,323.53x = 218,743,726.51
  5. Step 5: Solve for x
    x = 218,743,726.51/20,323.53
  6. Step 6: Final answer
    x = 10,763.08

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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.