Home / 19,985.40-29,948.94-11,222.82

Finding the Fourth Proportional to 19,985.40, 29,948.94 and 11,222.82

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Solution

The fourth proportional to 19,985.40, 29,948.94 and 11,222.82 is: 16,817.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.40 : 29,948.94 = 11,222.82 : x
  2. Step 2: Convert to fraction form
    19,985.40/29,948.94 = 11,222.82/x
  3. Step 3: Cross multiply
    19,985.40x = 29,948.94 × 11,222.82
  4. Step 4: Simplify right side
    19,985.40x = 336,111,562.81
  5. Step 5: Solve for x
    x = 336,111,562.81/19,985.40
  6. Step 6: Final answer
    x = 16,817.86

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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.