Home / 21,174.11-31,754.66-14,642.27

Finding the Fourth Proportional to 21,174.11, 31,754.66 and 14,642.27

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Solution

The fourth proportional to 21,174.11, 31,754.66 and 14,642.27 is: 21,958.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,174.11 : 31,754.66 = 14,642.27 : x
  2. Step 2: Convert to fraction form
    21,174.11/31,754.66 = 14,642.27/x
  3. Step 3: Cross multiply
    21,174.11x = 31,754.66 × 14,642.27
  4. Step 4: Simplify right side
    21,174.11x = 464,960,342.08
  5. Step 5: Solve for x
    x = 464,960,342.08/21,174.11
  6. Step 6: Final answer
    x = 21,958.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.