Home / 19,371.72-29,060.70-8,278.50

Finding the Fourth Proportional to 19,371.72, 29,060.70 and 8,278.50

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Solution

The fourth proportional to 19,371.72, 29,060.70 and 8,278.50 is: 12,419.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,371.72 : 29,060.70 = 8,278.50 : x
  2. Step 2: Convert to fraction form
    19,371.72/29,060.70 = 8,278.50/x
  3. Step 3: Cross multiply
    19,371.72x = 29,060.70 × 8,278.50
  4. Step 4: Simplify right side
    19,371.72x = 240,579,004.95
  5. Step 5: Solve for x
    x = 240,579,004.95/19,371.72
  6. Step 6: Final answer
    x = 12,419.08

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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.