Home / 20,737.93-31,083.60-8,254.55

Finding the Fourth Proportional to 20,737.93, 31,083.60 and 8,254.55

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Solution

The fourth proportional to 20,737.93, 31,083.60 and 8,254.55 is: 12,372.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.93 : 31,083.60 = 8,254.55 : x
  2. Step 2: Convert to fraction form
    20,737.93/31,083.60 = 8,254.55/x
  3. Step 3: Cross multiply
    20,737.93x = 31,083.60 × 8,254.55
  4. Step 4: Simplify right side
    20,737.93x = 256,580,974.96
  5. Step 5: Solve for x
    x = 256,580,974.96/20,737.93
  6. Step 6: Final answer
    x = 12,372.55

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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.