Home / 40,939.94-61,409.90-18,424.30

Finding the Fourth Proportional to 40,939.94, 61,409.90 and 18,424.30

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Solution

The fourth proportional to 40,939.94, 61,409.90 and 18,424.30 is: 27,636.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,939.94 : 61,409.90 = 18,424.30 : x
  2. Step 2: Convert to fraction form
    40,939.94/61,409.90 = 18,424.30/x
  3. Step 3: Cross multiply
    40,939.94x = 61,409.90 × 18,424.30
  4. Step 4: Simplify right side
    40,939.94x = 1,131,434,420.57
  5. Step 5: Solve for x
    x = 1,131,434,420.57/40,939.94
  6. Step 6: Final answer
    x = 27,636.45

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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.