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Finding the Fourth Proportional to 19,337.40, 29,027.70 and 18,068.40

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Solution

The fourth proportional to 19,337.40, 29,027.70 and 18,068.40 is: 27,122.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,337.40 : 29,027.70 = 18,068.40 : x
  2. Step 2: Convert to fraction form
    19,337.40/29,027.70 = 18,068.40/x
  3. Step 3: Cross multiply
    19,337.40x = 29,027.70 × 18,068.40
  4. Step 4: Simplify right side
    19,337.40x = 524,484,094.68
  5. Step 5: Solve for x
    x = 524,484,094.68/19,337.40
  6. Step 6: Final answer
    x = 27,122.78

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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.