Home / 21,548.51-29,736.35-13,055.66

Finding the Fourth Proportional to 21,548.51, 29,736.35 and 13,055.66

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Solution

The fourth proportional to 21,548.51, 29,736.35 and 13,055.66 is: 18,016.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,548.51 : 29,736.35 = 13,055.66 : x
  2. Step 2: Convert to fraction form
    21,548.51/29,736.35 = 13,055.66/x
  3. Step 3: Cross multiply
    21,548.51x = 29,736.35 × 13,055.66
  4. Step 4: Simplify right side
    21,548.51x = 388,227,733.26
  5. Step 5: Solve for x
    x = 388,227,733.26/21,548.51
  6. Step 6: Final answer
    x = 18,016.45

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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.