Home / 39,916.90-59,819.74-20,172.42

Finding the Fourth Proportional to 39,916.90, 59,819.74 and 20,172.42

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Solution

The fourth proportional to 39,916.90, 59,819.74 and 20,172.42 is: 30,230.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,916.90 : 59,819.74 = 20,172.42 : x
  2. Step 2: Convert to fraction form
    39,916.90/59,819.74 = 20,172.42/x
  3. Step 3: Cross multiply
    39,916.90x = 59,819.74 × 20,172.42
  4. Step 4: Simplify right side
    39,916.90x = 1,206,708,919.57
  5. Step 5: Solve for x
    x = 1,206,708,919.57/39,916.90
  6. Step 6: Final answer
    x = 30,230.53

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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.