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Finding the Fourth Proportional to 36,501, 50,370.76 and 20,585.20

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Solution

The fourth proportional to 36,501, 50,370.76 and 20,585.20 is: 28,407.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,501 : 50,370.76 = 20,585.20 : x
  2. Step 2: Convert to fraction form
    36,501/50,370.76 = 20,585.20/x
  3. Step 3: Cross multiply
    36,501x = 50,370.76 × 20,585.20
  4. Step 4: Simplify right side
    36,501x = 1,036,892,168.75
  5. Step 5: Solve for x
    x = 1,036,892,168.75/36,501
  6. Step 6: Final answer
    x = 28,407.23

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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.