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Finding the Fourth Proportional to 36,291.30, 50,082.48 and 20,374.80

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Solution

The fourth proportional to 36,291.30, 50,082.48 and 20,374.80 is: 28,117.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,291.30 : 50,082.48 = 20,374.80 : x
  2. Step 2: Convert to fraction form
    36,291.30/50,082.48 = 20,374.80/x
  3. Step 3: Cross multiply
    36,291.30x = 50,082.48 × 20,374.80
  4. Step 4: Simplify right side
    36,291.30x = 1,020,420,513.50
  5. Step 5: Solve for x
    x = 1,020,420,513.50/36,291.30
  6. Step 6: Final answer
    x = 28,117.50

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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.