Home / 38,153.43-57,238.35-12,855.46

Finding the Fourth Proportional to 38,153.43, 57,238.35 and 12,855.46

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Solution

The fourth proportional to 38,153.43, 57,238.35 and 12,855.46 is: 19,285.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,153.43 : 57,238.35 = 12,855.46 : x
  2. Step 2: Convert to fraction form
    38,153.43/57,238.35 = 12,855.46/x
  3. Step 3: Cross multiply
    38,153.43x = 57,238.35 × 12,855.46
  4. Step 4: Simplify right side
    38,153.43x = 735,824,968.42
  5. Step 5: Solve for x
    x = 735,824,968.42/38,153.43
  6. Step 6: Final answer
    x = 19,285.95

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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.