Home / 21,053.51-29,058.74-13,884.72

Finding the Fourth Proportional to 21,053.51, 29,058.74 and 13,884.72

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Solution

The fourth proportional to 21,053.51, 29,058.74 and 13,884.72 is: 19,164.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053.51 : 29,058.74 = 13,884.72 : x
  2. Step 2: Convert to fraction form
    21,053.51/29,058.74 = 13,884.72/x
  3. Step 3: Cross multiply
    21,053.51x = 29,058.74 × 13,884.72
  4. Step 4: Simplify right side
    21,053.51x = 403,472,548.26
  5. Step 5: Solve for x
    x = 403,472,548.26/21,053.51
  6. Step 6: Final answer
    x = 19,164.14

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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.