Home / 38,158.75-52,662.31-21,168.47

Finding the Fourth Proportional to 38,158.75, 52,662.31 and 21,168.47

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Solution

The fourth proportional to 38,158.75, 52,662.31 and 21,168.47 is: 29,214.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,158.75 : 52,662.31 = 21,168.47 : x
  2. Step 2: Convert to fraction form
    38,158.75/52,662.31 = 21,168.47/x
  3. Step 3: Cross multiply
    38,158.75x = 52,662.31 × 21,168.47
  4. Step 4: Simplify right side
    38,158.75x = 1,114,780,529.37
  5. Step 5: Solve for x
    x = 1,114,780,529.37/38,158.75
  6. Step 6: Final answer
    x = 29,214.28

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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.