Home / 21,045.62-29,053.49-13,090.42

Finding the Fourth Proportional to 21,045.62, 29,053.49 and 13,090.42

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Solution

The fourth proportional to 21,045.62, 29,053.49 and 13,090.42 is: 18,071.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.62 : 29,053.49 = 13,090.42 : x
  2. Step 2: Convert to fraction form
    21,045.62/29,053.49 = 13,090.42/x
  3. Step 3: Cross multiply
    21,045.62x = 29,053.49 × 13,090.42
  4. Step 4: Simplify right side
    21,045.62x = 380,322,386.57
  5. Step 5: Solve for x
    x = 380,322,386.57/21,045.62
  6. Step 6: Final answer
    x = 18,071.33

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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.