Home / 21,919.38-32,902.47-9,445.56

Finding the Fourth Proportional to 21,919.38, 32,902.47 and 9,445.56

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Solution

The fourth proportional to 21,919.38, 32,902.47 and 9,445.56 is: 14,178.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,919.38 : 32,902.47 = 9,445.56 : x
  2. Step 2: Convert to fraction form
    21,919.38/32,902.47 = 9,445.56/x
  3. Step 3: Cross multiply
    21,919.38x = 32,902.47 × 9,445.56
  4. Step 4: Simplify right side
    21,919.38x = 310,782,254.53
  5. Step 5: Solve for x
    x = 310,782,254.53/21,919.38
  6. Step 6: Final answer
    x = 14,178.42

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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.