Home / 35,780.70-49,378.50-19,866.43

Finding the Fourth Proportional to 35,780.70, 49,378.50 and 19,866.43

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Solution

The fourth proportional to 35,780.70, 49,378.50 and 19,866.43 is: 27,416.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,780.70 : 49,378.50 = 19,866.43 : x
  2. Step 2: Convert to fraction form
    35,780.70/49,378.50 = 19,866.43/x
  3. Step 3: Cross multiply
    35,780.70x = 49,378.50 × 19,866.43
  4. Step 4: Simplify right side
    35,780.70x = 980,974,167.53
  5. Step 5: Solve for x
    x = 980,974,167.53/35,780.70
  6. Step 6: Final answer
    x = 27,416.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.