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Finding the Fourth Proportional to 36,307.74, 50,101.88 and 20,389.11

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Solution

The fourth proportional to 36,307.74, 50,101.88 and 20,389.11 is: 28,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,307.74 : 50,101.88 = 20,389.11 : x
  2. Step 2: Convert to fraction form
    36,307.74/50,101.88 = 20,389.11/x
  3. Step 3: Cross multiply
    36,307.74x = 50,101.88 × 20,389.11
  4. Step 4: Simplify right side
    36,307.74x = 1,021,532,640.58
  5. Step 5: Solve for x
    x = 1,021,532,640.58/36,307.74
  6. Step 6: Final answer
    x = 28,135.40

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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.