Home / 19,721-27,214.98-13,444.36

Finding the Fourth Proportional to 19,721, 27,214.98 and 13,444.36

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Solution

The fourth proportional to 19,721, 27,214.98 and 13,444.36 is: 18,553.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721 : 27,214.98 = 13,444.36 : x
  2. Step 2: Convert to fraction form
    19,721/27,214.98 = 13,444.36/x
  3. Step 3: Cross multiply
    19,721x = 27,214.98 × 13,444.36
  4. Step 4: Simplify right side
    19,721x = 365,887,988.51
  5. Step 5: Solve for x
    x = 365,887,988.51/19,721
  6. Step 6: Final answer
    x = 18,553.22

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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.