Home / 21,043.25-29,013.42-13,477.14

Finding the Fourth Proportional to 21,043.25, 29,013.42 and 13,477.14

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Solution

The fourth proportional to 21,043.25, 29,013.42 and 13,477.14 is: 18,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,043.25 : 29,013.42 = 13,477.14 : x
  2. Step 2: Convert to fraction form
    21,043.25/29,013.42 = 13,477.14/x
  3. Step 3: Cross multiply
    21,043.25x = 29,013.42 × 13,477.14
  4. Step 4: Simplify right side
    21,043.25x = 391,017,923.22
  5. Step 5: Solve for x
    x = 391,017,923.22/21,043.25
  6. Step 6: Final answer
    x = 18,581.64

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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.