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Finding the Fourth Proportional to 36,526.80, 50,406.80 and 20,611.20

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Solution

The fourth proportional to 36,526.80, 50,406.80 and 20,611.20 is: 28,443.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,526.80 : 50,406.80 = 20,611.20 : x
  2. Step 2: Convert to fraction form
    36,526.80/50,406.80 = 20,611.20/x
  3. Step 3: Cross multiply
    36,526.80x = 50,406.80 × 20,611.20
  4. Step 4: Simplify right side
    36,526.80x = 1,038,944,636.16
  5. Step 5: Solve for x
    x = 1,038,944,636.16/36,526.80
  6. Step 6: Final answer
    x = 28,443.35

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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.