Home / 34,722.80-47,916.08-20,380.68

Finding the Fourth Proportional to 34,722.80, 47,916.08 and 20,380.68

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Solution

The fourth proportional to 34,722.80, 47,916.08 and 20,380.68 is: 28,124.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,722.80 : 47,916.08 = 20,380.68 : x
  2. Step 2: Convert to fraction form
    34,722.80/47,916.08 = 20,380.68/x
  3. Step 3: Cross multiply
    34,722.80x = 47,916.08 × 20,380.68
  4. Step 4: Simplify right side
    34,722.80x = 976,562,293.33
  5. Step 5: Solve for x
    x = 976,562,293.33/34,722.80
  6. Step 6: Final answer
    x = 28,124.53

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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.