Home / 38,157.12-52,657.26-21,161.70

Finding the Fourth Proportional to 38,157.12, 52,657.26 and 21,161.70

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Solution

The fourth proportional to 38,157.12, 52,657.26 and 21,161.70 is: 29,203.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,157.12 : 52,657.26 = 21,161.70 : x
  2. Step 2: Convert to fraction form
    38,157.12/52,657.26 = 21,161.70/x
  3. Step 3: Cross multiply
    38,157.12x = 52,657.26 × 21,161.70
  4. Step 4: Simplify right side
    38,157.12x = 1,114,317,138.94
  5. Step 5: Solve for x
    x = 1,114,317,138.94/38,157.12
  6. Step 6: Final answer
    x = 29,203.39

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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.