Home / 28,253.89-42,387.92-19,950.11

Finding the Fourth Proportional to 28,253.89, 42,387.92 and 19,950.11

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Solution

The fourth proportional to 28,253.89, 42,387.92 and 19,950.11 is: 29,930.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,253.89 : 42,387.92 = 19,950.11 : x
  2. Step 2: Convert to fraction form
    28,253.89/42,387.92 = 19,950.11/x
  3. Step 3: Cross multiply
    28,253.89x = 42,387.92 × 19,950.11
  4. Step 4: Simplify right side
    28,253.89x = 845,643,666.67
  5. Step 5: Solve for x
    x = 845,643,666.67/28,253.89
  6. Step 6: Final answer
    x = 29,930.17

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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.