Home / 40,141.80-60,249.69-20,434.50

Finding the Fourth Proportional to 40,141.80, 60,249.69 and 20,434.50

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Solution

The fourth proportional to 40,141.80, 60,249.69 and 20,434.50 is: 30,670.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,141.80 : 60,249.69 = 20,434.50 : x
  2. Step 2: Convert to fraction form
    40,141.80/60,249.69 = 20,434.50/x
  3. Step 3: Cross multiply
    40,141.80x = 60,249.69 × 20,434.50
  4. Step 4: Simplify right side
    40,141.80x = 1,231,172,290.31
  5. Step 5: Solve for x
    x = 1,231,172,290.31/40,141.80
  6. Step 6: Final answer
    x = 30,670.58

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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.