Home / 26,666.20-36,761.32-20,687.32

Finding the Fourth Proportional to 26,666.20, 36,761.32 and 20,687.32

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Solution

The fourth proportional to 26,666.20, 36,761.32 and 20,687.32 is: 28,518.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,666.20 : 36,761.32 = 20,687.32 : x
  2. Step 2: Convert to fraction form
    26,666.20/36,761.32 = 20,687.32/x
  3. Step 3: Cross multiply
    26,666.20x = 36,761.32 × 20,687.32
  4. Step 4: Simplify right side
    26,666.20x = 760,493,190.46
  5. Step 5: Solve for x
    x = 760,493,190.46/26,666.20
  6. Step 6: Final answer
    x = 28,518.99

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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.