Home / 19,385.38-29,027.30-12,700.86

Finding the Fourth Proportional to 19,385.38, 29,027.30 and 12,700.86

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Solution

The fourth proportional to 19,385.38, 29,027.30 and 12,700.86 is: 19,018.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,385.38 : 29,027.30 = 12,700.86 : x
  2. Step 2: Convert to fraction form
    19,385.38/29,027.30 = 12,700.86/x
  3. Step 3: Cross multiply
    19,385.38x = 29,027.30 × 12,700.86
  4. Step 4: Simplify right side
    19,385.38x = 368,671,673.48
  5. Step 5: Solve for x
    x = 368,671,673.48/19,385.38
  6. Step 6: Final answer
    x = 19,018.03

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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.