Home / 20,417.49-28,174.52-11,463.28

Finding the Fourth Proportional to 20,417.49, 28,174.52 and 11,463.28

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Solution

The fourth proportional to 20,417.49, 28,174.52 and 11,463.28 is: 15,818.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417.49 : 28,174.52 = 11,463.28 : x
  2. Step 2: Convert to fraction form
    20,417.49/28,174.52 = 11,463.28/x
  3. Step 3: Cross multiply
    20,417.49x = 28,174.52 × 11,463.28
  4. Step 4: Simplify right side
    20,417.49x = 322,972,369.85
  5. Step 5: Solve for x
    x = 322,972,369.85/20,417.49
  6. Step 6: Final answer
    x = 15,818.42

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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.