Home / 21,033.54-29,029.43-13,488.39

Finding the Fourth Proportional to 21,033.54, 29,029.43 and 13,488.39

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Solution

The fourth proportional to 21,033.54, 29,029.43 and 13,488.39 is: 18,616.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033.54 : 29,029.43 = 13,488.39 : x
  2. Step 2: Convert to fraction form
    21,033.54/29,029.43 = 13,488.39/x
  3. Step 3: Cross multiply
    21,033.54x = 29,029.43 × 13,488.39
  4. Step 4: Simplify right side
    21,033.54x = 391,560,307.04
  5. Step 5: Solve for x
    x = 391,560,307.04/21,033.54
  6. Step 6: Final answer
    x = 18,616.00

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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.