Home / 28,361.34-39,137.76-16,424.91

Finding the Fourth Proportional to 28,361.34, 39,137.76 and 16,424.91

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Solution

The fourth proportional to 28,361.34, 39,137.76 and 16,424.91 is: 22,665.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,361.34 : 39,137.76 = 16,424.91 : x
  2. Step 2: Convert to fraction form
    28,361.34/39,137.76 = 16,424.91/x
  3. Step 3: Cross multiply
    28,361.34x = 39,137.76 × 16,424.91
  4. Step 4: Simplify right side
    28,361.34x = 642,834,185.60
  5. Step 5: Solve for x
    x = 642,834,185.60/28,361.34
  6. Step 6: Final answer
    x = 22,665.86

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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.