Home / 40,900.42-61,339.29-11,315.98

Finding the Fourth Proportional to 40,900.42, 61,339.29 and 11,315.98

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Solution

The fourth proportional to 40,900.42, 61,339.29 and 11,315.98 is: 16,970.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,900.42 : 61,339.29 = 11,315.98 : x
  2. Step 2: Convert to fraction form
    40,900.42/61,339.29 = 11,315.98/x
  3. Step 3: Cross multiply
    40,900.42x = 61,339.29 × 11,315.98
  4. Step 4: Simplify right side
    40,900.42x = 694,114,178.85
  5. Step 5: Solve for x
    x = 694,114,178.85/40,900.42
  6. Step 6: Final answer
    x = 16,970.83

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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.