Home / 35,721.98-49,299.30-19,811.56

Finding the Fourth Proportional to 35,721.98, 49,299.30 and 19,811.56

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Solution

The fourth proportional to 35,721.98, 49,299.30 and 19,811.56 is: 27,341.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,721.98 : 49,299.30 = 19,811.56 : x
  2. Step 2: Convert to fraction form
    35,721.98/49,299.30 = 19,811.56/x
  3. Step 3: Cross multiply
    35,721.98x = 49,299.30 × 19,811.56
  4. Step 4: Simplify right side
    35,721.98x = 976,696,039.91
  5. Step 5: Solve for x
    x = 976,696,039.91/35,721.98
  6. Step 6: Final answer
    x = 27,341.60

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1.5x scale

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.