Home / 38,168.98-52,671.34-21,173.90

Finding the Fourth Proportional to 38,168.98, 52,671.34 and 21,173.90

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Solution

The fourth proportional to 38,168.98, 52,671.34 and 21,173.90 is: 29,218.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,168.98 : 52,671.34 = 21,173.90 : x
  2. Step 2: Convert to fraction form
    38,168.98/52,671.34 = 21,173.90/x
  3. Step 3: Cross multiply
    38,168.98x = 52,671.34 × 21,173.90
  4. Step 4: Simplify right side
    38,168.98x = 1,115,257,686.03
  5. Step 5: Solve for x
    x = 1,115,257,686.03/38,168.98
  6. Step 6: Final answer
    x = 29,218.95

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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.