Home / 36,731.16-50,690.07-20,815.07

Finding the Fourth Proportional to 36,731.16, 50,690.07 and 20,815.07

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Solution

The fourth proportional to 36,731.16, 50,690.07 and 20,815.07 is: 28,725.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,731.16 : 50,690.07 = 20,815.07 : x
  2. Step 2: Convert to fraction form
    36,731.16/50,690.07 = 20,815.07/x
  3. Step 3: Cross multiply
    36,731.16x = 50,690.07 × 20,815.07
  4. Step 4: Simplify right side
    36,731.16x = 1,055,117,101.90
  5. Step 5: Solve for x
    x = 1,055,117,101.90/36,731.16
  6. Step 6: Final answer
    x = 28,725.40

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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.