Home / 40,235.20-55,491.08-30,185.94

Finding the Fourth Proportional to 40,235.20, 55,491.08 and 30,185.94

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Solution

The fourth proportional to 40,235.20, 55,491.08 and 30,185.94 is: 41,631.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,235.20 : 55,491.08 = 30,185.94 : x
  2. Step 2: Convert to fraction form
    40,235.20/55,491.08 = 30,185.94/x
  3. Step 3: Cross multiply
    40,235.20x = 55,491.08 × 30,185.94
  4. Step 4: Simplify right side
    40,235.20x = 1,675,050,411.42
  5. Step 5: Solve for x
    x = 1,675,050,411.42/40,235.20
  6. Step 6: Final answer
    x = 41,631.47

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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.