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Finding the Fourth Proportional to 36,555.92, 50,447.18 and 20,641.40

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Solution

The fourth proportional to 36,555.92, 50,447.18 and 20,641.40 is: 28,485.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,555.92 : 50,447.18 = 20,641.40 : x
  2. Step 2: Convert to fraction form
    36,555.92/50,447.18 = 20,641.40/x
  3. Step 3: Cross multiply
    36,555.92x = 50,447.18 × 20,641.40
  4. Step 4: Simplify right side
    36,555.92x = 1,041,300,065.81
  5. Step 5: Solve for x
    x = 1,041,300,065.81/36,555.92
  6. Step 6: Final answer
    x = 28,485.13

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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.