Home / 38,408.50-57,612.73-12,115.29

Finding the Fourth Proportional to 38,408.50, 57,612.73 and 12,115.29

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Solution

The fourth proportional to 38,408.50, 57,612.73 and 12,115.29 is: 18,172.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,408.50 : 57,612.73 = 12,115.29 : x
  2. Step 2: Convert to fraction form
    38,408.50/57,612.73 = 12,115.29/x
  3. Step 3: Cross multiply
    38,408.50x = 57,612.73 × 12,115.29
  4. Step 4: Simplify right side
    38,408.50x = 697,994,931.64
  5. Step 5: Solve for x
    x = 697,994,931.64/38,408.50
  6. Step 6: Final answer
    x = 18,172.93

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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.