Home / 21,916.58-32,874.60-20,854.04

Finding the Fourth Proportional to 21,916.58, 32,874.60 and 20,854.04

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Solution

The fourth proportional to 21,916.58, 32,874.60 and 20,854.04 is: 31,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,916.58 : 32,874.60 = 20,854.04 : x
  2. Step 2: Convert to fraction form
    21,916.58/32,874.60 = 20,854.04/x
  3. Step 3: Cross multiply
    21,916.58x = 32,874.60 × 20,854.04
  4. Step 4: Simplify right side
    21,916.58x = 685,568,223.38
  5. Step 5: Solve for x
    x = 685,568,223.38/21,916.58
  6. Step 6: Final answer
    x = 31,280.80

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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.