Home / 19,738.20-29,607.30-18,125.40

Finding the Fourth Proportional to 19,738.20, 29,607.30 and 18,125.40

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Solution

The fourth proportional to 19,738.20, 29,607.30 and 18,125.40 is: 27,188.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,738.20 : 29,607.30 = 18,125.40 : x
  2. Step 2: Convert to fraction form
    19,738.20/29,607.30 = 18,125.40/x
  3. Step 3: Cross multiply
    19,738.20x = 29,607.30 × 18,125.40
  4. Step 4: Simplify right side
    19,738.20x = 536,644,155.42
  5. Step 5: Solve for x
    x = 536,644,155.42/19,738.20
  6. Step 6: Final answer
    x = 27,188.10

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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.