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Finding the Fourth Proportional to 36,895, 50,916.18 and 20,129.08

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Solution

The fourth proportional to 36,895, 50,916.18 and 20,129.08 is: 27,778.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,895 : 50,916.18 = 20,129.08 : x
  2. Step 2: Convert to fraction form
    36,895/50,916.18 = 20,129.08/x
  3. Step 3: Cross multiply
    36,895x = 50,916.18 × 20,129.08
  4. Step 4: Simplify right side
    36,895x = 1,024,895,860.51
  5. Step 5: Solve for x
    x = 1,024,895,860.51/36,895
  6. Step 6: Final answer
    x = 27,778.72

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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.