Home / 36,909.50-50,937.85-20,999.08

Finding the Fourth Proportional to 36,909.50, 50,937.85 and 20,999.08

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Solution

The fourth proportional to 36,909.50, 50,937.85 and 20,999.08 is: 28,980.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,909.50 : 50,937.85 = 20,999.08 : x
  2. Step 2: Convert to fraction form
    36,909.50/50,937.85 = 20,999.08/x
  3. Step 3: Cross multiply
    36,909.50x = 50,937.85 × 20,999.08
  4. Step 4: Simplify right side
    36,909.50x = 1,069,647,679.99
  5. Step 5: Solve for x
    x = 1,069,647,679.99/36,909.50
  6. Step 6: Final answer
    x = 28,980.28

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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.