Home / 23,438.85-32,360.73-20,916.62

Finding the Fourth Proportional to 23,438.85, 32,360.73 and 20,916.62

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Solution

The fourth proportional to 23,438.85, 32,360.73 and 20,916.62 is: 28,878.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,438.85 : 32,360.73 = 20,916.62 : x
  2. Step 2: Convert to fraction form
    23,438.85/32,360.73 = 20,916.62/x
  3. Step 3: Cross multiply
    23,438.85x = 32,360.73 × 20,916.62
  4. Step 4: Simplify right side
    23,438.85x = 676,876,930.53
  5. Step 5: Solve for x
    x = 676,876,930.53/23,438.85
  6. Step 6: Final answer
    x = 28,878.42

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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.