Home / 20,737.02-28,617.38-11,305.58

Finding the Fourth Proportional to 20,737.02, 28,617.38 and 11,305.58

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Solution

The fourth proportional to 20,737.02, 28,617.38 and 11,305.58 is: 15,601.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.02 : 28,617.38 = 11,305.58 : x
  2. Step 2: Convert to fraction form
    20,737.02/28,617.38 = 11,305.58/x
  3. Step 3: Cross multiply
    20,737.02x = 28,617.38 × 11,305.58
  4. Step 4: Simplify right side
    20,737.02x = 323,536,078.98
  5. Step 5: Solve for x
    x = 323,536,078.98/20,737.02
  6. Step 6: Final answer
    x = 15,601.86

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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.