Home / 19,901.10-29,866.05-8,222.70

Finding the Fourth Proportional to 19,901.10, 29,866.05 and 8,222.70

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Solution

The fourth proportional to 19,901.10, 29,866.05 and 8,222.70 is: 12,340.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,901.10 : 29,866.05 = 8,222.70 : x
  2. Step 2: Convert to fraction form
    19,901.10/29,866.05 = 8,222.70/x
  3. Step 3: Cross multiply
    19,901.10x = 29,866.05 × 8,222.70
  4. Step 4: Simplify right side
    19,901.10x = 245,579,569.34
  5. Step 5: Solve for x
    x = 245,579,569.34/19,901.10
  6. Step 6: Final answer
    x = 12,340.00

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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.