Home / 20,969.83-28,937.55-12,010.96

Finding the Fourth Proportional to 20,969.83, 28,937.55 and 12,010.96

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Solution

The fourth proportional to 20,969.83, 28,937.55 and 12,010.96 is: 16,574.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,969.83 : 28,937.55 = 12,010.96 : x
  2. Step 2: Convert to fraction form
    20,969.83/28,937.55 = 12,010.96/x
  3. Step 3: Cross multiply
    20,969.83x = 28,937.55 × 12,010.96
  4. Step 4: Simplify right side
    20,969.83x = 347,567,755.55
  5. Step 5: Solve for x
    x = 347,567,755.55/20,969.83
  6. Step 6: Final answer
    x = 16,574.66

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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.