Home / 21,014.24-29,013.16-13,067.28

Finding the Fourth Proportional to 21,014.24, 29,013.16 and 13,067.28

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Solution

The fourth proportional to 21,014.24, 29,013.16 and 13,067.28 is: 18,041.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.24 : 29,013.16 = 13,067.28 : x
  2. Step 2: Convert to fraction form
    21,014.24/29,013.16 = 13,067.28/x
  3. Step 3: Cross multiply
    21,014.24x = 29,013.16 × 13,067.28
  4. Step 4: Simplify right side
    21,014.24x = 379,123,085.40
  5. Step 5: Solve for x
    x = 379,123,085.40/21,014.24
  6. Step 6: Final answer
    x = 18,041.25

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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.