Home / 35,686.30-49,247.49-19,771

Finding the Fourth Proportional to 35,686.30, 49,247.49 and 19,771

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Solution

The fourth proportional to 35,686.30, 49,247.49 and 19,771 is: 27,284.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,686.30 : 49,247.49 = 19,771 : x
  2. Step 2: Convert to fraction form
    35,686.30/49,247.49 = 19,771/x
  3. Step 3: Cross multiply
    35,686.30x = 49,247.49 × 19,771
  4. Step 4: Simplify right side
    35,686.30x = 973,672,124.79
  5. Step 5: Solve for x
    x = 973,672,124.79/35,686.30
  6. Step 6: Final answer
    x = 27,284.20

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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.