Home / 40,669.56-61,042.86-20,961.72

Finding the Fourth Proportional to 40,669.56, 61,042.86 and 20,961.72

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Solution

The fourth proportional to 40,669.56, 61,042.86 and 20,961.72 is: 31,462.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,669.56 : 61,042.86 = 20,961.72 : x
  2. Step 2: Convert to fraction form
    40,669.56/61,042.86 = 20,961.72/x
  3. Step 3: Cross multiply
    40,669.56x = 61,042.86 × 20,961.72
  4. Step 4: Simplify right side
    40,669.56x = 1,279,563,339.32
  5. Step 5: Solve for x
    x = 1,279,563,339.32/40,669.56
  6. Step 6: Final answer
    x = 31,462.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.