Home / 30,323.89-41,813.53-20,765.35

Finding the Fourth Proportional to 30,323.89, 41,813.53 and 20,765.35

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Solution

The fourth proportional to 30,323.89, 41,813.53 and 20,765.35 is: 28,633.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,323.89 : 41,813.53 = 20,765.35 : x
  2. Step 2: Convert to fraction form
    30,323.89/41,813.53 = 20,765.35/x
  3. Step 3: Cross multiply
    30,323.89x = 41,813.53 × 20,765.35
  4. Step 4: Simplify right side
    30,323.89x = 868,272,585.19
  5. Step 5: Solve for x
    x = 868,272,585.19/30,323.89
  6. Step 6: Final answer
    x = 28,633.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.