Home / 19,821.84-29,526.19-18,770

Finding the Fourth Proportional to 19,821.84, 29,526.19 and 18,770

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Solution

The fourth proportional to 19,821.84, 29,526.19 and 18,770 is: 27,959.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,821.84 : 29,526.19 = 18,770 : x
  2. Step 2: Convert to fraction form
    19,821.84/29,526.19 = 18,770/x
  3. Step 3: Cross multiply
    19,821.84x = 29,526.19 × 18,770
  4. Step 4: Simplify right side
    19,821.84x = 554,206,586.30
  5. Step 5: Solve for x
    x = 554,206,586.30/19,821.84
  6. Step 6: Final answer
    x = 27,959.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.