Home / 38,155.44-52,656.21-21,158.54

Finding the Fourth Proportional to 38,155.44, 52,656.21 and 21,158.54

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Solution

The fourth proportional to 38,155.44, 52,656.21 and 21,158.54 is: 29,199.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,155.44 : 52,656.21 = 21,158.54 : x
  2. Step 2: Convert to fraction form
    38,155.44/52,656.21 = 21,158.54/x
  3. Step 3: Cross multiply
    38,155.44x = 52,656.21 × 21,158.54
  4. Step 4: Simplify right side
    38,155.44x = 1,114,128,525.53
  5. Step 5: Solve for x
    x = 1,114,128,525.53/38,155.44
  6. Step 6: Final answer
    x = 29,199.73

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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.